VOLUME II - INTEGRATED FLEET MAINTENANCE

APPENDIX A

TYPICAL CNO AVAILABILITY PLANNING MILESTONES (SUBMARINES ONLY)

NOTE: "A" AND "C" IN THE "TIMELINE" COLUMN REPRESENT THE START AND COMPLETION DATES, RESPECTIVELY. THE DATES SHOWN ARE FOR ILLUSTRATION ONLY, SINCE ACTUAL MILESTONES VARY DEPENDING ON SHIP OPERATING SCHEDULES, START DATE CHANGES, AND OTHER CONSIDERATIONS.

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APPENDIX R

MAJOR TRIAL AND INSPECTION MILESTONES FOR INDUSTRIAL ACTIVITY

AVAILABILITIES LESS THAN SIX MONTHS DURATION (SUBMARINES ONLY)

NOTE: UNLESS OTHERWISE INDICATED, SCHEDULE DATES ARE REFERENCED TO SEA TRIALS UNDERWAY DATE.

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APPENDIX S

MAJOR TRIAL AND INSPECTION MILESTONES

FOR INDUSTRIAL ACTIVITY AVAILABILITIES GREATER THAN SIX MONTHS

DURATION (SUBMARINES ONLY)

NOTES: 1. SEE PARAGRAPH 3.6.8.4.6 OF THIS CHAPTER FOR ADDITIONAL GUIDANCE CONCERNING ISIC/TYCOM REPRESENTATIVE CONDUCTED INSPECTIONS.

2. IN THE EVENT THAT SEA TRIALS ARE ABORTED AND/OR AN ADDITIONAL SEA TRIAL BECOMES NECESSARY, A SPECIAL "COUNTDOWN MESSAGE" (APPENDIX AJ OF THIS CHAPTER) SHALL BE INITIATED BY THE TYCOM.

3. UNLESS OTHERWISE INDICATED, SCHEDULE DATES ARE REFERENCED TO SEA TRIALS UNDERWAY DATE.

APPENDIX T

SAMPLE TYCOM MESSAGE TO SHIP CONCERNING COMPLETION

PREREQUISITES FOR AVAILABILITIES OF GREATER THAN

SIX MONTHS DURATION (SUBMARINES ONLY)

FM COMSUBLANT/PAC//N43//

TO SUPERVISING AUTHORITY//CODES//

ISIC//

USS (SHIP NAME)//

INFO CNO WASHINGTON DC//N87//

FLTCINC//N43//

COMNAVSEASYSCOM WASHINGTON DC//PMS 393 (SSN)/PMS 396 (SSBN)/08//

DIRSSP WASHINGTON DC (FOR SSBNS)//205//

SUBOPAUTH (IF OTHER THAN PARENT TYCOM)//

COMSUBGRU NO.//N3//

COMSUBDEVGRU ONE SAN DIEGO CA//N3//

BT

UNCLAS //N09094//

MSGID/GENADMIN/TYCOM//

SUBJ/(SUBS) USS (SHIP NAME SSN/SSBN HULL NO.) (TYPE AVAILABILITY) FAST CRUISE, SEA TRIAL AND COMPLETION PREREQUISITES//

REF/A/DOC/CINCLANTFLT/CINCPACFLTINST 4790.3/VOLUME V//

AMPN/REF A IS JOINT FLEET MAINTENANCE MANUAL QUALITY MAINTENANCE//

REF/B/DOC/NAVSEA/0924-LP-062-0010//

AMPN/REF B IS SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL//

RMKS/1. REFS A AND B PRESCRIBE TYCOM AND NAVSEA REQUIREMENTS FOR INDUSTRIAL AVAILABILITY FAST CRUISE, SEA TRIAL AND COMPLETION.

2. FOLLOWING REPORTS AND AUTHORIZATIONS ARE PREREQUISITES TO START OF FAST CRUISE:

A.IAW REF A (APPENDIX H). ISIC MSG REPORT TO TYCOM THAT CREW CERTIFICATION AND MATERIAL CONDITION IS SATISFACTORY FOR SEA TRIALS. REPORT SHALL INCLUDE CERTIFICATION OF FORCES AFLOAT WORK IS IN ACCORDANCE WITH REFS A AND B, MATERIAL/SALVAGE CONDITION, REC STATUS, IDENTIFICATION OF ANY OUTSTANDING DEPARTURES FROM SPECIFICATION AND URO MRC ACCOMPLISHMENT WITHIN THE REQUIRED PERIODICITY.

B.IAW REF B, SUPERVISING AUTHORITY MSG REPORT TO NAVSEA AND TYCOM THAT MATERIAL CONDITION OF SYSTEMS AND EQUIPMENTS INSTALLED, REPAIRED AND/OR TESTED BY INDUSTRIAL ACTIVITY ARE SATISFACTORY FOR POST (TYPE AVAILABILITY) TRIALS, INCLUDING CORRECTION OF ALL CAT I AND AUDIT ITEMS AND STATUS OF ALL INCOMPLETE CAT IA AUDIT ITEMS. (APPENDIX Y)

C.CO, USS (SHIP NAME SSN/SSBN HULL NO.) MSG REPORT IAW REF A (APPENDIX AH) TO TYCOM STATING THAT CREW AND SHIP ARE READY FOR SEA TRIALS, LISTING EXCEPTIONS SUCH AS COMPLETION OF FAST CRUISE.

D.IAW REF B, NAVSEA (PMS 393) MSG TO TYCOM CERTIFYING MATERIAL CONDITION OF USS (SHIP NAME SSN/SSBN HULL NO.) FOR SPECIFIC TRIAL OPERATING DEPTH. (APPENDIX X)

E.TYCOM MSG IAW REF A (APPENDIX AC) TO NAVSEA 08 AND CO, USS (SHIP NAME SSN/SSBN HULL NO.) REQUESTING NAVSEA AUTHORIZATION FOR CRITICAL REACTOR OPERATIONS AND GRANTING SHIP PERMISSION TO START FAST CRUISE UPON RECEIPT OF THIS AUTHORIZATION.

F.NAVSEA 08 MSG AUTHORIZING CRITICAL REACTOR OPERATIONS FOR FAST CRUISE AND SEA TRIALS.

3.FOLLOWING REPORTS AND AUTHORIZATIONS ARE PREREQUISITES TO START OF SEA TRIALS:

A.IAW REF B SUPERVISING AUTHORITY MSG REPORT TO TYCOM REPORTING COMPLETION OF FAST CRUISE AND READINESS FOR SEA TRIALS. (APPENDIX Z)

B.CO, USS (SHIP NAME SSN/SSBN HULL NO.) MSG IAW REF A (APPENDIX AI) TO TYCOM AFTER COMPLETION OF FAST CRUISE REPORTING READINESS FOR SEA TRIALS.

C.ISIC MSG REPORT IAW REF A (APPENDIX AF) PROVIDING STATUS OF MATERIAL CONDITION CERTIFICATION SUBSEQUENT TO FAST CRUISE.

D.IAW REF B (APPENDIX AD), TYCOM (ACTING FOR FLTCOM) MSG TO CO, AUTHORIZING DIVING TO A SPECIFIED SEA TRIALS DEPTH.

E.IAW REF A (APPENDIX AD) TYCOM MSG TO CO, USS (SHIP NAME SSN/SSBN HULL NO.) GRANTING PERMISSION TO PROCEED ON SEA TRIALS LISTING ANY OPERATIONAL RESTRICTIONS.

4.USS (SHIP NAME SSN/SSBN HULL NO.) SEA TRIALS WILL BE UNDER OPCON OF ____________.

5.CO, USS (SHIP NAME SSN/SSBN HULL NO.) IS REQUESTED TO PROVIDE SEA TRIAL SITREPS AT INTERVALS OF 24 HRS OR LESS AND IDENTIFY ITEMS MANDATORY FOR CORRECTION PRIOR TO COMPLETION OF (TYPE AVAILABILITY).

6.FOLLOWING REPORTS AND AUTHORIZATIONS ARE PREREQUISITES TO CONDUCT OF SUBMERGED OPERATIONS AFTER (TYPE AVAILABILITY) COMPLETION:

A.IAW REF B, SUPERVISING AUTHORITY MSG REPORT TO NAVSEA REPORTING COMPLETION OF AUTHORIZED WORK AND CAT IA AUDIT ITEMS LISTING EXCEPTIONS. (APPENDIX AB)

B.IAW REF B, NAVSEA MSG TO TYCOM CERTIFYING MATERIAL CONDITION OF USS (SHIP NAME SSN/SSBN HULL NO.) SATISFACTORY FOR UNRESTRICTED OPERATIONS TO DESIGN TEST DEPTH. (APPENDIX AM)

C.ISIC MSG IAW REF A (APPENDIX AG) TO TYCOM REPORTING MATERIAL CONDITION OF SHIP AND URO MRC STATUS SUBSEQUENT TO SEA TRIALS.

D.IAW REF B (APPENDIX AE), TYCOM MSG TO CO, USS (SHIP NAME SSN/SSBN HULL NO.) AUTHORIZING CONDUCT OF UNRESTRICTED OPERATIONS TO DESIGN TEST DEPTH.-16)//

BT

NOTES: 1. MESSAGES LISTED IN PARAGRAPHS 2 THROUGH 6 OF THIS APPENDIX SHOULD BE ASSIGNED APPROPRIATE PRECEDENCE AND PARALLELED BY TELEPHONE TO ACTION ADDEES CITING DATE-LINE GROUP OF FORTHCOMING MESSAGES. ALL ADDEES OF THIS MESSAGE ARE TO BE INCLUDED AS ADDEES ON THE MESSAGES LISTED IN PARAGRAPHS 2 THROUGH 6 OF THIS APPENDIX.

2. IN THE EVENT THE SEA TRIALS ARE ABORTED OR AN ADDITIONAL SEA TRIAL BECOMES NECESSARY, A SPECIAL "COUNTDOWN MESSAGE" (APPENDIX AJ OF THIS CHAPTER) SHALL BE INITIATED BY THE TYCOM.

APPENDIX U

MINIMUM DOCK TRIALS REQUIREMENTS (SUBMARINES ONLY)

1.Dock Trials. Ship's Force Dock Trials provide the opportunity to test and check out systems, components and portable equipment prior to the Fast Cruise training period simulating underway conditions. Although normally a period of one day is assigned for integrated Ship's Force Dock Trials, tests and evolutions performed in the one to two weeks prior to the Dock Trial date may be accepted by the CO as fulfilling the requirements of this paragraph. The purpose of Dock Trials is to afford the ship an opportunity to demonstrate that major systems and equipments are in fact ready to support Sea Trials. It is expected that individual equipments will have been satisfactorily tested prior to commencement of the integrated operational tests afforded by Ship's Force Dock Trials.

1.1 Supervising Authority. The industrial activity may desire to conduct “machinery checkouts” or system checks prior to the Ship's Force Dock Trials in order to test the propulsion plant or other ship's systems. In order to support these evolutions, close liaison between the ship's CO and the industrial activity will be required. For these evolutions, completion of repairs or modifications to all ship's systems are not required except for those systems which directly support the proposed tests.

1.2 Scheduling of Tests. The scheduling of Ship's Force Dock Trials is flexible. Ship's Force Dock Trials may be scheduled by mutual agreement between the ship and the supervising authority but must take place prior to certification of crew/material readiness with adequate time allowed for collection of deficiencies discovered during the Ship's Force Dock Trials. Preparation of the agenda and schedule for the Dock Trials is the CO's responsibility.

1.3 Extent of Trials. Ship's Force Dock Trials are conducted by the Ship's Force and are normally unhampered by repair work. This applies to the entire ship not just the propulsion plant. The trials may be witnessed by the industrial activity.

1.3.1 Tests. The term “test” shall include, where applicable:

a. The review and use of a procedure for correct line-up, starting, operation and securing of systems or equipments.

b. Rigging, connecting and using all hoses, fittings and devices required for the test evolution.

c. Operation of systems in all modes, such as emergency, hand, override, cross-connected, normal, local, etc.

d. Checking all electrical and mechanical, local and remote indicators for proper readings.

e. Testing communications between normal control station and other locations involved in operating the system or performing the evolution.

f. Calibration and adjustment of equipments, systems and devices where required.

g. Inventory consumables, fittings, devices and portable test equipment to ensure that sufficient amounts are on board for proper operation throughout the trials.

1.3.2 Specific Test Areas. There are specific tests which relate to both systems and ship safety which must be conducted in preparation for Sea Trials.

a. The following are specific alongside tests which shall conducted during Dock Trials:

(1) Check the sound powered phone system between all stations.

(2) Check the announcing system between all stations.

(3) Test collision alarm and diving alarm.

(4) Test general alarm.

(5) Test each light on BCP.

(6) Test whistle.

(7) Check emergency lights.

(8) Operate all hydraulic plants using each installed pump.

(9) Conduct a complete air charge using only ship's compressors.

(10) Conduct a normal battery charge using ship's motor generator on shore power.

(11) Conduct low and high pressure blow of all Main Ballast Tanks (MBT). Thereafter conduct dockside operation portion of URO 022 (as appropriate).

(12) Flood sanitary tanks and then blow/pump them.

(13) Operate each main vent in hand and power. Following operation, with valves shut, conduct a controlled removal of MBT vent covers, one at a time, to check MBT vents for leaks.

(14) Operate the outboard induction in hand and power.

(15) Operate the diesel engine exhaust valve in hand and power.

(16) Operate inboard induction valves.

(17) Raise, train and lower periscopes, snorkel, radar and antenna masts and fairings as applicable.

(18) Test operation of radio transmitters and receivers on all antennas.

(19) Operate all sonar and radar equipment at rated conditions.

(20) Take and plot LORAN/OMEGA/NAVSAT fixes using each antenna.

(21) Test operation of drain pump using each bilge suction.

(22) Test operation of trim system and pump by pumping to and from each tank and by pumping to and from sea (if applicable).

(23) Calculate and enter the diving trim compensation.

(24) Test operation of portable submersible pump from each installed outlet.

(25) Fire inboard slugs from torpedo room.

(26) Fire inboard slugs from weapons launch console.

(27) Test magazine flooding system.

(28) Operate each lube oil system including pumps, controllers, purifiers and indicators.

(29) Start SINS/ESGN and gyrocompasses; determine that they settle out and take an azimuth; check all repeaters.

(30) Check fresh water system, have water samples analyzed.

(31) Test the capstans.

(32) Test bow plane rigging (where applicable).

(33) Test bow/sail and stern plane tilting in hand, normal power and emergency. Test normal and emergency plane angle indicators.

(34) Test rudder in hand, normal and emergency power. Test normal and emergency rudder angle indicators.

(35) Check alignment of periscopes, TBTs and all bearing and range repeaters.

(36) Test the engine order telegraphs.

(37) Test Automatic Bus Transfer Devices.

(38) Operate each watertight door and hatch, each bulkhead flapper and each intercompartment air salvage valve.

(39) Check operation of escape hatch fittings.

(40) Operate signal ejectors by impulse and hand using dummy signal. Fire water slugs from all launchers, both locally and remotely.

(41) Turn on and check running lights for brightness and proper lenses (to be done at night).

(42) Check freon air conditioning system.

(43) Check underwater log.

(44) Check 400 Hz MG sets.

(45) Check out galley equipment.

(46) Check fathometer.

(47) Check bilge flooding alarms.

(48) Check dummy log.

(49) Check ship service air system.

(50) Check out vapor compressor distilling units.

(51) Check anchor windlass and brake operation.

(52) Check battery water system.

(53) Check out atmosphere monitoring equipment, both installed and portable.

(54) Operate oxygen generator, CO2 scrubbers, CO burners and emergency air breathing system.

(55) If possible, lower, train, operate and raise the SPM.

(56) Ensure that all required PMS to ship depth detectors is complete.

(57) Test diesel engine high vacuum cut-out. Take altimeter to engine room or diesel generator room for test.

(58) Check main propulsion.

(59) Ensure five-day supply of oxygen onboard, test operate the Electrolytic Oxygen Generator(s) (EOG).

APPENDIX V

MINIMUM FAST CRUISE REQUIREMENTS (SUBMARINES ONLY)

1.Fast Cruise Requirements. Asterisk items are the minimum requirements for an industrial activity availability of less than six months duration. All listed items are the minimum requirements for an industrial activity availability of greater than six months duration.

a. All Ships (as applicable):

*(1) Station the maneuvering watch and check each system and piece of equipment for proper operation. (For available less than six months duration, system/equipment checks are not required).

*(2) Station the normal underway watch (section watches).

(3) Simulate getting underway and return to port (day and night).

*(4) Walk through all major Sea Trial evolutions, including cycling of hull and back-up valves to be tested during the deep dive.

*(5) Exercise the reduced visibility detail.

*(6) Rig for Emergency Ventilate.

(7) Spot check storage and availability of spare parts and tools. Verify adequacy of stores and provisions.

*(8) Rig for dive and rig for surface.

*(9) Simulate diving and surfacing.

*(10) Rig for deep submergence.

(11) Rig for various quiet conditions.

(12) Drill at loss of power to various circuits including lighting, communications, 400 Hz power, etc.

(13) Battery charge - Normal or equalizer as required.

*(14) Conduct the following emergency drills:

*(a) Fire.

*(b) Collision.

*(c) Flooding.

*(d) Toxic Gas.

(e) Abandon Ship.

*(f) Man Overboard.

(g) Submarine Escape.

(h) Loss of AC Power.

(i) Emergency Ventilation.

(j) Loss of Air Conditioning.

(k) Loss of Lighting.

(l) Loss of Interior Communications.

(15) Exercise the crew at battle stations.

(16) Conduct communications and ECM drills.

*(17) Conduct an air charge to all air banks. (For availabilities less than six months duration “Conduct an air charge”).

*(18) Bleed oxygen and ventilate ship. Ensure a five day supply of oxygen is onboard and EOG(s) are fully operational. Ships without EOG(s) may provide a five day supply of oxygen in O2 candle form and have oxygen banks inerted until after availability completion.

(19) Anchor.

(20) Operate atmosphere control equipment and take air samples.

*(21) Check out all interior communications circuits, including battle telephones.

(22) Simulate submerged patrol, performing all evolutions and operating equipment normally used.

*(23) Operate freshwater/seawater heat exchangers at sufficient load to verify proper operation (not fouled with marine growth).

(24) Nuclear powered submarines shall meet all requirements of reference (r), Appendix D, Part 3.

b. Additional requirements for SSBNs. SSBNs shall conduct exercises in casualties to missile tube breather valves which would result in:

(1) Flooding.

(2) Introducing toxic gases into the missile compartment from gas generators.

APPENDIX W

MINIMUM SEA TRIALS REQUIREMENTS FOR INDUSTRIAL ACTIVITY AVAILABILITIES LESS

THAN SIX MONTHS DURATION (SUBMARINES ONLY)

1. Sea Trial Agenda. This Appendix delineates the minimum requirements incident to Sea Trials following industrial activity availability/RAV/RAD. Additional events listed in Appendix AN, may be included as desired by the CO.
2. Sea Trial Rules. The following rules apply to conduct of trials and tests associated with industrial activity availabilities, NAVSEA or David Taylor sponsored Trials/Tests or any other situation where the ship is requested to conduct trials or tests:

a. No test or trial event shall be conducted that requires crew intervention to avoid exceeding normal operating limits. Trial agendas will be based on the expectation that the ship will remain within normal operating limits of the SOE and at angles less than 30 degrees.

b. The trial director must be prepared to project whether the next event might exceed normal operating limits based on the empirical results of the previous event. A run that is predicted to exceed normal operating limits should be deleted along with the more demanding runs of that sequence.

c. Any run which will result in exceeding normal operating limits of the SOE or 30 degree angles but which is essential to provide adequate test data must be specifically approved by the TYCOM. The test/trial sponsor will obtain this permission.

d. A violation of the SOE limit of exceeding a 30 degree angle, not previously approved, should be reported by unit SITREP. The TYCOM will resolve the situation.

e. Specific written approval by the TYCOM is not required to operate outside the upper limits of the SOE, i.e., shallow and fast, while conducting the following operations during Sea Trials or tests in accordance with an agenda approved by the ISIC, NAVSEA or higher authority:

(1) Conducting full power runs or cavitation curves.

(2) NAVSEA sponsored acoustic trials in accordance with a David Taylor Research Center acoustic trial agenda.

f. In cases where troubleshooting is required, it must meet the following criteria or a formally approved change to the agenda is mandatory.

(1) The troubleshooting does not violate any rules listed in paragraphs 1.a through e of this Appendix or any other requirement of the trials agenda.

(2) The troubleshooting will not result in the ship being in a certain condition before that condition is reached during the normal testing sequence. For example, troubleshooting requiring the ship to be deeper than 200 feet cannot be done until after the deep dive. Likewise, troubleshooting requiring large angles or turn rates cannot be done until after the completion of the steering and diving operational tests and the large angle tests.

3.Test Phasing. The Sea Trials should be scheduled and phased to support actions enroute to the test dive area, in the test dive area, prior to the deep dive, etc., subject to the amplifying notes.

4.The following tests and evolutions will be carried out on the surface enroute to the test dive area and prior to the initial tightness dive:

a. Underway. Rig for dive. Energize heaters to stills.

b. Conduct operational test of rudder in normal and emergency modes (See Note 5).

c. Navigation system check. Takes fixes by all electronic, celestial, and visual means and compare.

d. Test underway log(s) using measured mile or navigational fixes to determine accuracy.

e. Test accuracy of all bearing transmitters and indicators. Compare sonar, visual and radar bearings.

f. Check operation of all radars. Demonstrate accuracy by conducting simultaneous radar and visual plot.

g. Inspect stern tube packing gland/seals and circulating water flow.

h. Test fathometer(s) and compare with charted soundings.

i. Run ahead at full power long enough for temperatures to reach a stable value. After readings have stabilized, operate rudder through full throw in each direction in normal and emergency power. Refer to reference (u) regarding depth of water. Check out hand modes.

j. Ahead flank to back emergency. (See Note 12).

k. Run system up to full power. Full power run system to be consistent with backing pressure limitations on plane and rudder rams and within turbine limitations. Operate rudder through full throw.

l. Check operation and accuracy of ship's gyro compass.

m. Rendezvous with escort, if an escort is required. Conduct radio and sonar communications checks (See Note 1).

n. Test all control surfaces in all modes.

o. Flood variable tanks to computed compensation less a safety factor.

p. Operate trim and drain pumps.

q. Test variable ballast system for proper operation.

r. Test low pressure air, normal and EMBT blow systems. (See Note 13).

s. Ensure air banks are charged to within 200 psi of full pressure.

t. Ensure aft MBT blow systems are fully operational and in a normal line up configuration.

u. Ship's Force instruct Sea Trials riders on the proper use of Emergency Air Breathing System.

5.The following tests and evolutions will be carried out immediately prior to or during the initial tightness dive:

a. Obtain navigational fix and take sounding. Maximum depth of water is 400 feet as specified in the applicable TYCOM Operational Order.

b. Transmit initial tightness dive message. Conduct a running dive to periscope depth. Obtain speed. Trim, if practical, at periscope depth. If sea state requires deeper submergence, proceed slowly to 150 feet to obtain speed trim. Use conservative angles and speed on initial dive.

c. Check operation of ship control systems, including depth indication (See Note 2).

d. When escort is required, communicate with escort on WQC at each depth increment or at 10 minute intervals, whichever is sooner. If communications are lost, return to depth at which communications can be established before continuing (See Note 1).

e. All hands inspect for leaks and correct them.

f. Vent the fuel system if sea pressure compensated.

g. At periscope depth, operate all masts checking optics and leakage. Observe speed and depth restrictions for masts without violation of the SOE (See Note 11).

h. Test operation of trim and drain system.

i. Operate all Main and Auxiliary Sea Water hull and back-up valves and those other valves worked during the availability. Equalize all sea pressure on all systems designed for test depth as set forth in reference (ac) (See Notes 9 and 10).

j. Test the SPM (See Note 30 in Appendix AN of this chapter).

k. Conduct operational test of signal ejectors (See Note 4).

6.The following tests and evolutions will be carried out following the initial tightness dive and prior to the deep dive:

a. Transmit initial tightness dive complete message. Charge air banks and battery if necessary. The ship may be submerged while charging air banks provided the depth of the ship does not exceed other guidelines in this instruction, or those of the flooding bill or ship's operating procedure.

b. If escort is required, detach escort after initial tightness dive. Escort will then proceed to station for deep dive. Ensure that deep dive rendezvous time and location are clearly established before escort is released. The escort may be detached after completing all initial tightness dive events and surfacing using EMBT blow from depths of 400 feet or deeper. The escort may be used for additional testing on the transit. Transit depths shall not exceed initial tightness dive depths.

7.The following tests and evolutions will be carried out immediately prior to or during the deep dive:

a. Ensure that air banks are charged to within 200 psi of full pressure.

b. Line up MBT system for normal operation.

c. Take sounding. Accurately fix ship's position within the specified dive area along with the maximum water depth as given in the applicable TYCOM Operational Order. Transmit the commencing deep dive message.

d. Submerge to periscope depth and trim the ship.

e. Obtain stop trim. Take readings required to make a check of ballasting.

f. Trim ship to maintain neutral buoyancy (See Note 3).

g. Line up propulsion plant for maximum reliability in accordance with ship's instructions.

h. Rig ship for deep submergence. All systems should be in the maximum secure condition with unnecessary sea systems isolated as prescribed in reference (ac).

i. Station additional personnel throughout the ship to inspect for leaks as deemed necessary.

j. At 150 feet, 200 feet and then in increments of 200 feet while above and descending to one-half the maximum operating depth and every 100 feet or other lesser specified increments thereafter down to the maximum authorized operating depth:

(1) Inspect for leaks.

(2) Adjust trim (See Note 3).

(3) Communicate with escort (if escort required) at each 100 feet a depth increment or at 10 minute intervals, whichever is sooner. If communications are lost, return to a depth at which communications can be re-established before continuing (See Note 1).

k. At depths listed for hull valve cycling in reference (ac) and at the maximum authorized operation depth:

(1) Check accuracy of gauges and repeaters (See Note 2).

(2) Conduct operational test of signal ejectors (See Note 4).

(3) Check shafting bearings and stern tubes for excessive heating, leakage and noise. Sealol shaft seals must be tested at each depth specified in reference (ac) testing one seal for 20 minutes, and shifting to the other seal and testing the other seal for 20 minutes before leaving each specified depth.

(4) Cycle rudder and planes through full throw to check for binding. Cycling of rudder and planes through full throws should be limited to test depth minus 100 feet (See Note 5).

(5) Operate all Main and Auxiliary Sea Water hull and back-up valves and those other seawater system valves worked during the availability (using remote closures, as applicable, from flooding control stations) that are required to maintain propulsion and other functions vital to the ship's operation at increments of depth specified in reference (ac).

NOTE: REQUIRED SYSTEMS ARE LISTED IN PARAGRAPH 4B OF REFERENCE (AC). OBSERVE RESTRICTIONS ON OPERATION OF SYSTEMS LISTED IN PARAGRAPH 4D OF REFERENCE (AC).

NOTE: TRASH DISPOSAL UNITS (TDU) WITH BALL VALVES WILL NOT BE OPERATED BELOW 200 FEET. TDUs WITH FLAPPER VALVES WILL NOT BE OPERATED BELOW 150 FEET.

(6) Operate trim and drain pumps, discharging to sea.

(7) Cycle main vents to check for binding.

l. Surface fully with EMBT blow in accordance with applicable URO MRC. Check air bank pressures before and after blow.

m. Transmit completion of deep dive message.

8.The following tests and evolutions will be carried out submerged following the deep dive:

a. Steering and diving operation at full speed (See Note 6).

b. Full power run (See Notes 6, 7, and 8).

c. Steep angles - operate ship through several depth changes using large up and down angles to check operation of ship machinery (See Note 7).

d. Time raising each periscope and mast at maximum depth and speed for which they are designed. Check training feature where applicable.

e. Run and observe air conditioning plants throughout trials noting deficiencies. Operate the Lithium Bromide air conditioning plant (if installed) to demonstrate ability to carry entire maximum existing ship's air conditioning load or 100 percent capacity.

NOTES

1. In the execution of any Sea Trial, whether escorted or not, submarine COs are reminded of their responsibility to communicate with escorts and/or shore authorities within the prescribed previously agreed upon time limits to avoid initiation of lost submarine procedures.

2. Compare all depth and pressure gauges; check operation of planes and rudder in all modes, etc. Depth and pressure gauges should be checked as soon as each next specified depth is reached.

3. Deep dive should be conducted using moderate speed and constantly adjusting trim at depths indicated in paragraph 7.j of this Appendix to maintain neutral buoyancy. Moderate speed shall be defined as that range of speed that allows the ship optimum recovery (as shown on recovery curves) if loss of stern plane control and/or flooding occurs.

4. Integrity of torpedo tubes and signal ejectors shall be established by admitting sea pressure through equalizing lines or flooding connection and the muzzle doors operated before conducting operational tests. Shoot water slugs from torpedo tubes as required by the Anti Submarine Warfare (ASW) Test Program down to ship/torpedo tube limiting depth, whichever is less. Shoot pyrotechnics from signal ejector on initial tightness dive and at test depth on deep dive only if any work was accomplished on the signal ejectors or if an escort vessel is required for the trial.

5. At maximum safe speed, operate the rudder and planes through full throw in both directions in normal and emergency power.

6. Run full power submerged for at least two hours. Operate at minimum non-cavitating depth but not to exceed 400 feet (SSN 688 Class submarines may exceed 400 feet, as required, consistent with the SOE but not to exceed one-half test depth plus 50 feet); water depth is not limited for this event.

7. Note that the required sequence of events is initial dive, deep dive, full power run submerged, back emergency, then high speed maneuverability and steep angle tests. Initial high speed ship control tests, steep angle tests and exercises at major casualties shall be conducted in water that does not exceed one and one-half times design test depth (which equates to collapse depth).

8. The full power submerged ahead test for commissioned nuclear powered submarines shall be terminated by a back emergency bell. The duration of the back emergency shall be limited to 45 seconds, to be followed immediately by an appropriate ahead bell. Caution must be exercised to avoid developing sternway.

9. Those seawater systems which are not required for normal safe operation of the ship at test depth but which have been designed for and may be subjected to test depth pressure should not be subjected to submergence pressure during the initial dive to any specified depth; e.g., blowing sanitary tanks. See reference (ac).

10. This evolution (initial operation of hull and back-up valves in fully submerged condition) at depths other than specified in reference (ac) is intended for crew training is not technically required. Evolution may be abbreviated or deleted on case basis as desired by ship's CO.

11. Any evolutions (e.g., mast testing, propeller cavitation data collection, etc.) required by the Sea Trials Agenda which violate the ship's SOE must be approved by the TYCOM prior to Sea Trials in accordance with paragraph 2 of this appendix.

12. The full power run with an ahead flank bell is to be terminated with a back emergency bell, consistent with current Main Propulsion Operating Limits (shaft torque is not a limiting factor in this test). The duration of the back emergency bell will be limited to 45 seconds, to be followed immediately by an appropriate ahead bell. The 45 second limit will:

a. Standardize the crashback requirements throughout the submarine force.

b. Provide a backing transient similar to that experienced during a stern plane jam.

c. Be short enough that ship will not gather sternway.

13. Test the normal and emergency blow systems in their normal valve line ups. A static blow shall not be used.

14. This evolution may be conducted anytime after the deep dive, provided an escort ship was not required for Sea Trials.

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APPENDIX X

SAMPLE NAVSEA MESSAGE TO TYCOM CONCERNING SUBSAFE MATERIAL CONDITION READINESS AND DEPTH RECOMMENDATION FOR SEA TRIALS (SUBMARINES ONLY)

FM COMNAVSEASYSCOM WASHINGTON DC//

TO COMSUB(LANT/PAC) (NORFOLK VA/PEARL HARBOR HI)//

INFO CNO WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR HI)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUBGRU (NO.)//

COMSUBRON (NO.)//

USS (SHIP NAME)//

(SUPERVISING AUTHORITY)//

BT

UNCLAS //N09094//

MSGID/GENADMIN/COMSUB(LANT/PAC)//

SUBJ/(SUBS) SUBSAFE MATERIAL CONDITION READINESS AND DEPTH RECOMMENDATION FOR SEA TRIALS OF USS (SHIP NAME/HULL NO.)//

REF/A/DOC/NAVSEA 0924-LP-062-0010//

REF/B/MSG/(SUPERVISING AUTHORITY)/(DTG)// (APPENDIX Y)

REF/C/LTR/NAVSEA (SER NO./DATE)//

REF/D/LTR/COMSUB(LANT/PAC) (SER NO./DATE)//

NARR/REF A IS THE SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL. REF B IS (SUPERVISING AUTHORITY) REPORT OF READINESS OF (SHIP NAME/HULL NO.) FOR FAST CRUISE AND SEA TRIALS. REF C CONCURRED IN SEA TRIAL AGENDA FOR USS (SHIP NAME/HULL NO.). REF D APPROVED THE SEA TRIAL AGENDA FOR USS (SHIP NAME/HULL NO.)//

RMKS/1. IAW REF A, AND AS REPORTED BY REF B, THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED, AND/OR TESTED BY THE INDUSTRIAL ACTIVITY IS CERTIFIED SATISFACTORY FOR SEA TRIALS TO TEST DEPTH.

2. SUBJECT TO CONFIRMATION BY TYCOM THAT CERTIFICATION REQUIREMENTS OF REF A HAVE BEEN SUSTAINED FOR THE REMAINDER OF THE SUBSAFE CERTIFICATION BOUNDARY, RECOMMEND AUTHORIZED DIVING UNDER DELIBERATE AND CONTROLLED CONDITIONS TO TEST DEPTH IAW THE SEA TRIAL AGENDA CONCURRED IN BY REF C AND APPROVED BY REF D (SUBJECT TO THE FOLLOWING RESTRICTIONS: LIST ANY RESTRICTIONS WHICH MAY BE APPLICABLE).

3. REQUEST NAVSEA PMS( ) BE INFO ADDEE ON ALL SEA TRIAL SITREPS.//

BT

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APPENDIX Y

SAMPLE SUPERVISING AUTHORITY MESSAGE TO NAVSEA AND TYCOM CONCERNING

SUBSAFE AND MATERIAL CONDITION READINESS FOR FAST CRUISE/SEA TRIALS

(SUBMARINES ONLY)

FM (SUPERVISING AUTHORITY)//

TO COMNAVSEASYSCOM WASHINGTON DC//

COMSUB(LANT/PAC) (NORFOLK VA/PEARL HARBOR HI)//

INFO CNO WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR HI)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUBGRU (NO.)//

COMSUBRON (NO.)//

USS (SHIP NAME)//

BT

UNCLAS //N09094//

MSGID/GENADMIN/(SUPERVISING AUTHORITY)//

SUBJ/(SUBS) SUBSAFE AND MATERIAL CONDITION READINESS FOR FAST CRUISE AND SEA TRIALS OF USS (SHIP NAME/HULL NO.)//

REF/A/DOC/NAVSEA 0924-LP-062-0010//

REF/B/DOC/OPNAVINST 9080.3//

REF/C/LTR/NAVSEA (SER NO./DATE)//(REFERENCE ADDITIONAL AUDIT REPORTS AS REQUIRED)

NARR/REF A IS THE SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL. REF B CONTAINS PROCEDURES FOR TESTS AND TRIALS OF NAVAL NUCLEAR POWERED SHIPS. REF C IS NAVSEA SUBSAFE CERTIFICATION AUDIT REPORT FOR USS (SHIP NAME/HULL NO.).//

RMKS/1. IAW REFS A AND B, (SUPERVISING AUTHORITY) VERIFIES THE MATERIAL CONDITION OF THOSE PARTS OF (SHIP NAME/HULL NO.) INSTALLED, REPAIRED AND/OR TESTED BY THE INDUSTRIAL ACTIVITY SATISFACTORY FOR POST REPAIR SEA TRIALS.

2. IAW REF A, (SUPERVISING AUTHORITY) REPORTS THAT ALL CAT I AUDIT RECOMMENDATIONS OF REF C HAVE BEEN SATISFACTORILY RESOLVED. THERE ARE NO SUBSAFE DEVIATIONS AND WAIVERS WITH CONDITIONS WHICH HAVE NOT BEEN SATISFIED. (OR LIST CONDITIONAL DEVIATIONS AND WAIVERS).

3. IAW REF A, THE STATUS OF INCOMPLETE CAT IA AUDIT RECOMMENDATIONS OF REF C IS AS FOLLOWS:

A.

B.

4. (SUPERVISING AUTHORITY) REPORTS READINESS OF USS (SHIP NAME/HULL NO.) FOR COMMENCEMENT OF FAST CRUISE. CO USS (SHIP NAME/HULL NO.) CONCURS.//

5. SUBJECT TO SATISFACTORY COMPLETION OF FAST CRUISE AND RESOLUTION OF MANDATORY DEFICIENCIES (SUPERVISING AUTHORITY) CONSIDERS USS (SHIP NAME/HULL NO.) MATERIAL CONDITION READINESS SATISFACTORY FOR COMMENCEMENT OF SEA TRIALS.//

BT

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APPENDIX Z

SAMPLE SUPERVISING AUTHORITY MESSAGE TO TYCOM AND NAVSEA CONCERNING FAST CRUISE COMPLETION AND SUBSAFE MATERIAL CONDITION READINESS FOR SEA TRIALS (SUBMARINES ONLY)

FM (SUPERVISING AUTHORITY)//

TO COMSUB(LANT/PAC) (NORFOLK VA/PEARL HARBOR HI)//

COMNAVSEASYSCOM WASHINGTON DC//

INFO CNO WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR HI)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUBGRU (NO.)//

COMSUBRON (NO.)//

USS (SHIP NAME)//

BT

UNCLAS //N09094//

MSGID/GENADMIN/(SUPERVISING AUTHORITY)//

SUBJ/(SUBS) USS (SHIP NAME/HULL NO.) FAST CRUISE COMPLETION//

REF/A/DOC/NAVSEA 0924-LP-062-0010//

AMPN/REF A IS THE SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL.//

RMKS/1. IAW REF A, (SUPERVISING AUTHORITY) REPORTS USS (SHIP NAME/HULL NO.) FAST CRUISE SUCCESSFULLY COMPLETED AT (TIME, DATE).

2. NO MANDATORY DEFICIENCIES FOR SEA TRIALS HAVE BEEN IDENTIFIED. THERE HAVE BEEN NO RECS OPENED AND NO SUBSAFE DEVIATIONS AND WAIVERS PROCESSED SINCE THE START OF FAST CRUISE. (OR, REPORT ANY MANDATORY DEFICIENCIES DISCOVERED WITH CORRECTIVE ACTION, AND IF RECs AND/OR DEVIATIONS AND WAIVERS WERE PROCESSED SINCE THE START OF FAST CRUISE, REPORT ALL RECS OPENED SINCE THE START OF FAST CRUISE ARE CLOSED AND/OR ALL SUBSAFE DEVIATIONS AND WAIVERS PROCESSED SINCE THE START OF FAST CRUISE ARE RESOLVED.)

3. IAW REF A, THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED, AND OR TESTED BY THE INDUSTRIAL ACTIVITY IS SATISFACTORY FOR SEA TRIALS.

4. RECOMMEND COMMENCEMENT OF SEA TRIALS AS SCHEDULED. CO USS (SHIP NAME/HULL NO.) CONCURS.//

BT

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APPENDIX AA

SAMPLE SUPERVISING AUTHORITY MESSAGE TO NAVSEA CONCERNING READINESS FOR FOLLOW-ON SEA TRIALS IN CASES WHERE A PREVIOUS SEA TRIAL WAS ABORTED OR CORRECTIVE ACTIONS FOR SEA TRIAL DEFICIENCIES REQUIRE AN ADDITIONAL

DEEP DIVE (SUBMARINES ONLY)

FM (SUPERVISING AUTHORITY)//

TO COMNAVSEASYSCOM WASHINGTON DC//

INFO CNO WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR HI)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUB(LANT/PAC) <NORFOLK VA/PEARL HARBOR HI>//

COMSUBGRU (NO.)//

COMSUBRON (NO.)//

USS (SHIP NAME)//

BT

UNCLAS //N09094//

MSGID/GENADMIN/(SUPERVISING AUTHORITY)//

SUBJ/(SUBS) READINESS FOR (FOLLOW-ON(1)) SEA TRIALS OF USS (SHIP NAME/HULL NO.)//

REF/A/MSG/(SUPERVISING AUTHORITY)/(DTG)// (APPENDIX Y)

REF/B/LTR/NAVSEA (SER NO./DATE)//

REF/C/DOC/NAVSEA 0924-LP-062-0010//

NARR/REF A IS (SUPERVISING AUTHORITY) REPORT READINESS OF USS (SHIP NAME/HULL NO.) FOR FAST CRUISE AND INITIAL SEA TRIALS. REF B IS THE SUBSAFE CERTIFICATION AUDIT REPORT. REF C IS THE SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL.//

RMKS/1. USS (SHIP NAME/HULL NO.) RETURNED FROM (PREVIOUS(2)) SEA TRIALS ON (DATE).

2. BY REF A, (SUPERVISING AUTHORITY) REPORTED ALL CAT I AUDIT RECOMMENDATIONS OF REF B SATISFACTORILY RESOLVED. THERE HAVE BEEN NO INDUSTRIAL ACTIVITY RECS OPENED AND NO INDUSTRIAL ACTIVITY SUBSAFE DEVIATIONS AND WAIVERS PROCESSED SINCE (PREVIOUS(2)) SEA TRIALS. (OR, IF RECS OR DEVIATIONS AND WAIVERS WERE PROCESSED SINCE THE PREVIOUS SEA TRIAL, REPORT ALL RECS OPENED SINCE (PREVIOUS(2)) SEA TRIALS ARE CLOSED AND/OR ALL SUBSAFE DEVIATIONS AND WAIVERS PROCESSED SINCE (PREVIOUS(2)) SEA TRIALS ARE RESOLVED).

3. THE STATUS OF REF B INCOMPLETE CAT 1A AUDIT RECOMMENDATIONS IS (SAME AS REPORTED BY REF A OR AS FOLLOWS:).

4. IAW REF C, (SUPERVISING AUTHORITY) REPORTS THAT THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED AND/OR TESTED BY THE INDUSTRIAL ACTIVITY IS SATISFACTORY FOR (FOLLOW-ON(1)) SEA TRIALS TO TEST DEPTH. CO USS (SHIP NAME/HULL NO.) CONCURS.//

BT

SUPERSCRIPT:

(1) UPCOMING TRIAL WHICH IS SUBJECT OF THIS CERTIFICATION (E.G., SECOND SEA TRIAL, ETC).

(2) PREVIOUS TRIAL WHICH MAY HAVE BEEN COMPLETED OR ABORTED.

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APPENDIX AB

SAMPLE SUPERVISING AUTHORITY MESSAGE TO NAVSEA CONCERNING SUBSAFE MATERIAL CONDITION TO SUPPORT URO (SUBMARINES ONLY)

FM (SUPERVISING AUTHORITY)//

TO COMNAVSEASYSCOM WASHINGTON DC//

INFO CNO WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR HI)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUB(LANT/PAC) (NORFOLK VA/PEARL HARBOR HI)//

COMSUBGRU (NO.)//

COMSUBRON (NO.)//

USS (SHIP NAME)//

BT

UNCLAS //N09094//

MSGID/GENADMIN/(SUPERVISING AUTHORITY)//

SUBJ/(SUBS) UNRESTRICTED OPERATIONS FOR USS (SHIP NAME)//

REF/A/DOC/NAVSEA 0924-LP-062-0010//

REF/B/MSG/(SUPERVISING AUTHORITY)/(DTG)// (APPENDIX Y)

REF/C/LTR/NAVSEA (SER NO./DATE)//

NARR/REF A IS THE SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL. REF B IS (SUPERVISING AUTHORITY) REPORT OF USS (SHIP NAME/HULL NO.) READINESS FOR FAST CRUISE AND SEA TRIALS. REF C IS THE NAVSEA SUBSAFE CERTIFICATION AUDIT REPORT FOR USS (SHIP NAME/HULL NO.).//

RMKS/1. IAW REF A, (SUPERVISING AUTHORITY) REPORTS THE SATISFACTORY COMPLETION OF ALL SEA TRIALS, COMPLETION OF CONTROLLED DIVES, AND THE RESOLUTION OF MANDATORY SEA TRIAL DEFICIENCIES.

2. REF B REPORTED SATISFACTORY RESOLUTION OF ALL CAT I AUDIT RECOMMENDATIONS OF REF C. IAW REF A, (SUPERVISING AUTHORITY) REPORTS THAT ALL CAT IA AUDIT RECOMMENDATIONS OF REF C HAVE BEEN SATISFACTORILY RESOLVED. THERE IS NO DEFERRED SUBSAFE WORK AND THERE ARE NO SUBSAFE DEVIATIONS AND WAIVERS WITH CONDITIONS WHICH HAVE NOT BEEN SATISFIED. (OR LIST DEFERRED SUBSAFE WORK AND/OR CONDITIONAL SUBSAFE DEVIATIONS AND WAIVERS).

3. THE STATUS OF INCOMPLETE CAT II AUDIT RECOMMENDATIONS OF REF C IS AS FOLLOWS:

A.

B.

4. IAW REF A, (SUPERVISING AUTHORITY) REPORTS THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED AND/OR TESTED BY THE INDUSTRIAL ACTIVITY IS SATISFACTORY FOR UNRESTRICTED FOR OPERATIONS TO TEST DEPTH.//

BT

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APPENDIX AC

SAMPLE TYCOM MESSAGE TO NAVSEA CONCERNING

FAST CRUISE AND CRITICAL REACTOR OPERATIONS (SUBMARINES ONLY)

FM TYCOM//N4//

TO COMNAVSEASYSCOM WASHINGTON DC//PMS 393 (SSN)/PMS 396 (SSBN)/08O//

USS (SHIP NAME)//

INFO CNO WASHINGTON DC//N87//

FLTCINC//N43//

DIRSSP WASHINGTON DC (FOR SSBNS)//205//

COMSUBDEVGRU ONE SAN DIEGO CA//N3//

COMSUBGRU NO.//N5//

COMSUBRON NO.//

SUPERVISING AUTHORITY//CODES//

BT

UNCLAS //N09094//

GENADMIN/TYCOM/-/(MONTH)//

SUBJ/(SUBS) FAST CRUISE FOR USS (SHIP NAME SSN/SSBN HULL NO.)//

REF/A/RMG/ISIC/(DTG)/NOTAL//(APPENDIX H)

REF/B/RMG/SUPERVISING AUTHORITY/(DTG)//(APPENDIX Y)

REF/C/RMG/NAVSEA/(DTG)//(APPENDIX X)

REF/D/RMG/USS (SHIP)/DTG//(APPENDIX AH)

RMKS/1. REFS A, B AND C REPORTED SATISFACTORY COMPLETION OF CREW/MATERIAL CERTIFICATION TO SUPPORT FAST CRUISE AND SEA TRIALS. REF D REPORTED SHIP AND CREW READY TO PROCEED ON SEA TRIALS WITH EXCEPTIONS NOTED AND REQUESTED PERMISSION TO COMMENCE FAST CRUISE.

2. FOR NAVSEA 08; REQUEST AUTHORIZATION FOR USS (SHIP NAME SSN/SSBN HULL NO.) TO CONDUCT CRITICAL REACTOR OPERATIONS FOR FAST CRUISE AND SEA TRIALS.

3. FOR CO USS (SHIP NAME SSN/SSBN HULL NO.); PERMISSION GRANTED TO START FAST CRUISE UPON RECEIPT OF NAVSEA AUTHORIZATION TO TAKE REACTOR CRITICAL//

BT

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APPENDIX AD

SAMPLE TYCOM MESSAGE TO SHIP CONCERNING SEA TRIALS DEPTH AUTHORIZATION

(SUBMARINES ONLY)

FM COMSUB(LANT/PAC) (NORFOLK VA/PEARL HARBOR HI)//

TO USS (SHIP NAME)//

INFO CNO WASHINGTON DC//

COMNAVSEASYSCOM WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUBGRU (NO.)//

COMSUBRON (NO.)//

(SUPERVISING AUTHORITY)//

BT

UNCLAS //N09094//

MSGID/ADMIN/COMSUB(LANT/PAC)//

SUBJ/(SUBS) USS (SHIP NAME/HULL NO.) SEA TRIALS DEPTH AUTHORIZATION//

REF/A/MSG/COMNAVSEASYSCOM/(DTG)//(APPENDIX X)

REF/B/MSG/SUPERVISING AUTHORITY/(DTG)//(APPENDIX Z)

REF/C/LTR/NAVSEA (SER NO./DATE)//

REF/D/LTR/COMSUB(LANT/PAC)/(SER NO./DATE)//

NARR/REF A IS NAVSEA SUBSAFE MATERIAL CONDITION READINESS REPORT AND SEA TRIALS DEPTH RECOMMENDATION FOR USS (SHIP NAME/HULL NO.). REF B IS (SUPERVISING AUTHORITY) REPORT OF USS (SHIP NAME/HULL NO.) FAST CRUISE COMPLETION AND READINESS FOR SEA TRIALS. REF C CONCURRED IN THE SEA TRIAL AGENDA FOR USS (SHIP NAME/HULL NO.). REF D APPROVED THE SEA TRIAL AGENDA FOR USS (SHIP NAME/HULL NO.).//

RMKS/1. REF A CERTIFIED THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED AND/OR TESTED BY THE INDUSTRIAL ACTIVITY IS SATISFACTORY FOR SEA TRIALS TO TEST DEPTH.

2. THIS MESSAGE CONFIRMS THAT THE CERTIFICATION OF THE REMAINDER OF ITEMS WITHIN THE SUBSAFE CERTIFICATION BOUNDARY OF USS (SHIP NAME/HULL NO.) HAS BEEN SUSTAINED. ACCORDINGLY, THE STATUS OF THE SUBSAFE CERTIFICATION BOUNDARY OF USS (SHIP NAME/HULL NO.) IS SATISFACTORY FOR SEA TRIALS TO TEST DEPTH (SUBJECT TO ANY RESTRICTIONS IN PARA 2 OF REF A IF ANY ARE IDENTIFIED).

3. REF B REPORTED COMPLETION OF FAST CRUISE AND READINESS TO PROCEED ON SEA TRIALS.

4. USS (SHIP NAME/HULL NO.) IS AUTHORIZED TO DIVE UNDER DELIBERATE AND CONTROLLED CONDITIONS TO (SPECIFIED) DEPTH IAW THE SEA TRIAL AGENDA CONCURRED IN BY REF C AND APPROVED BY REF D.//

BT

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APPENDIX AE

SAMPLE TYCOM MESSAGE TO SHIP CONCERNING URO (SUBMARINES ONLY)

FM COMSUB(LANT/PAC) (NORFOLK VA/PEARL HARBOR HI)//

TO USS (SHIP NAME)//

INFO CNO WASHINGTON DC//

COMNAVSEASYSCOM WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR HI)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUBGRU (NO.)//

COMSUBRON (NO.)//

(SUPERVISING AUTHORITY)//

BT

UNCLAS //N09094//

MSGID/GENADMIN/COMSUB(LANT/PAC)//

SUBJ/(SUBS) UNRESTRICTED OPERATION OF USS (SHIP NAME/HULL NO.)//

REF/A/MSG/COMNAVSEASYSCOM/(DTG)//(APPENDIX AM)

REF/B/DOC/NAVSEA 0924-LP-062-0010//

REF/C/DOC/COMSUB(LANT/PAC) NOTE C3120//

NARR/REF A IS NAVSEA URO MSG FOR USS (SHIP NAME/HULL NO.). REF B IS THE SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL. REF C CONTAINS TYCOM AUTHORIZED SUBMARINE OPERATING AND TEST DEPTHS.//

RMKS/1. REF A CERTIFIED THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED, AND/OR TESTED BY THE INDUSTRIAL ACTIVITY IS SATISFACTORY AND RECOMMENDED THAT USS (SHIP NAME/HULL NO.) BE AUTHORIZED TO CONDUCT UNRESTRICTED OPERATIONS TO TEST DEPTH.

2. (TYCOM) CONFIRMS THAT CERTIFICATION OF THE REMAINDER OF ITEMS NOT COVERED BY REF A WITHIN THE SUBSAFE CERTIFICATION BOUNDARY HAS BEEN SUSTAINED. ACCORDINGLY, USS (SHIP NAME/HULL NO.) IS AUTHORIZED TO CONDUCT OPERATIONS TO (SPECIFIED) DEPTH, SUBJECT TO THE FOLLOWING RESTRICTIONS: (LIST RESTRICTIONS IF THEY EXIST OR STATE "NONE").

3. CONTINUED CERTIFICATION FOR OPERATIONS TO TEST DEPTH IS SUBJECT TO COMPLIANCE WITH REF B. URO/MRC PERIODICITIES COMMENCE ON (DATE).

4. THIS MSG REMAINS IN EFFECT UNTIL INCLUDED IN A FUTURE REVISION OF REF C.//

BT

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APPENDIX AF

SAMPLE ISIC MESSAGE TO TYCOM CONCERNING

MATERIAL CERTIFICATION PRIOR TO SEA TRIALS (SUBMARINES ONLY)

FM ISIC//

TO TYCOM//N43/N402//

INFO COMSUBDEVGRU ONE SAN DIEGO CA//N4//

COMSUBGRU NO.//N4//

USS (SHIP NAME)//

BT

UNCLAS //N09094//

GENADMIN/ISIC/-/(MONTH)//

SUBJ/(SUBS) USS (SHIP NAME SSN/SSBN HULL NO.) MATERIAL CERTIFICATION/ READINESS FOR SEA TRIALS//

REF/A/RMG/TYCOM/(DTG)//(APPENDIX T)

REF/B/DOC/CINCLANTFLT/CINCPACFLTINST 4790.3//

AMPN/REF B IS JOINT FLEET MAINTENANCE MANUAL//

REF/C/RMG/ISIC/(DTG)/NOTAL//(APPENDIX H)

REF/D/DOC/NAVSEA 0924-LP-062-0010//

AMPN/REF D IS SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL//

REF/E/DOC/NAVSEA/(DATE OF CURRENT REVISION)//

AMPN/REF E IS (APPLICABLE URO REQUIREMENTS MANUAL)//

RMKS/1. IAW REFS A AND B, THIS MSG CERTIFIES THAT ALL WORK ACCOMPLISHED BY FORCES AFLOAT WITHIN THE SUBSAFE CERTIFICATION BOUNDARY SINCE CERTIFICATION OF REF C AND SUBSEQUENT TO FAST CRUISE HAS BEEN SATISFACTORILY COMPLETED AND RETESTED IAW REF D. CERTIFICATION REQUIREMENTS OF REF D HAVE BEEN SUSTAINED FOR THE REMAINDER OF THE SUBSAFE CERTIFICATION BOUNDARY.

2. THERE ARE NO OUTSTANDING REC'S. THE FOLLOWING DEPARTURES FROM SPECIFICATION ARE CURRENTLY OUTSTANDING:

DEPARTURE NO. TYPE SYSTEM/COMPONENT RESTRICTION (IF ANY)

A.

B.

3. ALL URO MRC MANDATORY TESTS/INSPECTIONS SPECIFIED IN REF E HAVE BEEN SUCCESSFULLY ACCOMPLISHED WITHIN THE REQUIRED PERIODICITY.//

BT

NOTE: LIST ALL RE-ENTRIES TO MATERIAL CERTIFICATION BOUNDARY AND ALL WORK ON SYSTEMS AFFECTING RECOVERABILITY, SALVAGE, WATERTIGHT INTEGRITY, OR OPERATION OF SHIP'S CONTROL SURFACES WITH CORRECTIVE ACTION SINCE RELEASE FOR FAST CRUISE MESSAGE.

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APPENDIX AG

SAMPLE ISIC MESSAGE TO TYCOM

CONCERNING MATERIAL CERTIFICATION UPON COMPLETION OF SEA TRIALS

(SUBMARINES ONLY)

FM ISIC//

TO TYCOM//N43/402//

INFO COMSUBDEVGRU ONE SAN DIEGO CA//N4//

COMSUBGRU NO.//N4//

USS (SHIP NAME)//

BT

UNCLAS //N09094//

GENADMIN/ISIC/-/(MONTH)//

SUBJ/(SUBS) USS (SHIP NAME SSN/SSBN HULL NO.) MATERIAL CERTIFICATION//

REF/A/RMG/TYCOM/(DTG)//(APPENDIX T)

REF/B/DOC/CINCLANTFLT/CINCPACFLTINST 4790.3//

AMPN/REF B IS JOINT FLEET MAINTENANCE MANUAL//

REF/C/DOC/NAVSEA 0924-LP-062-0010//

AMPN/REF C IS SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL//

REF/D/DOC/NAVSEA/(DATE OF CURRENT REVISION)//

AMPN/REF D IS (APPLICABLE URO REQUIREMENTS MANUAL)//

RMKS/1. IAW REFS A AND B THIS MESSAGE CERTIFIES THAT ALL WORK ACCOMPLISHED BY FORCES AFLOAT WITHIN THE SUBSAFE CERTIFICATION BOUNDARY SINCE CERTIFICATION FOR SEA TRIALS HAS BEEN SATISFACTORILY COMPLETED AND RETESTED IAW REF C. CERTIFICATION REQUIREMENTS OF REF C HAVE BEEN SUSTAINED FOR THE REMAINDER OF THE SUBSAFE CERTIFICATION BOUNDARY.

2. THERE ARE NO OUTSTANDING REC'S. THE FOLLOWING DEPARTURES FROM SPECIFICATION ARE CURRENTLY OUTSTANDING:

DEPARTURE NO. TYPE SYSTEM/COMPONENT RESTRICTION (IF ANY)

A.

B.

3. ALL URO MRC MANDATORY TESTS/INSPECTIONS SPECIFIED IN REF D HAVE BEEN SUCCESSFULLY ACCOMPLISHED WITHIN THE REQUIRED PERIODICITY.//

BT

NOTE: LIST ALL RE-ENTRIES TO MATERIAL CERTIFICATION BOUNDARY AND ALL WORK ON SYSTEMS AFFECTING RECOVERABILITY, SALVAGE, WATERTIGHT INTEGRITY, OR OPERATION OF SHIP'S CONTROL SURFACES WITH CORRECTIVE ACTION SINCE RELEASE FOR FAST CRUISE MESSAGE.

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APPENDIX AH

SAMPLE SHIP MESSAGE TO TYCOM CONCERNING READINESS FOR FAST CRUISE

(SUBMARINES ONLY)

FM USS (SHIP NAME)//

TO TYCOM//N43/402//

INFO CNO WASHINGTON DC//N87//

FLTCINC//N43//

COMNAVSEASYSCOM WASHINGTON DC//PMS 393 (SSN)/PMS 396 (SSBN)/08O//

DIRSSP WASHINGTON DC (FOR SSBN)//205//

SUBOPAUTH (IF OTHER THAN PARENT TYCOM)//

COMSUBDEVGRU ONE SAN DIEGO CA//N3//

COMSUBGRU NO.//N5//

COMSUBRON NO.//

SUPERVISING AUTHORITY//CODES//

BT

UNCLAS //N09094//

GENADMIN/USS (SHIP NAME)/-/(MONTH)//

SUBJ/(SUBS) USS (SHIP NAME SSN/SSBN HULL NO.) READINESS FOR FAST CRUISE//

REF/A/DOC/CINCLANTFLT/CINCPACFLTINST 4790.3//

AMPN/REF A IS JOINT FLEET MAINTENANCE MANUAL//

REF/B/RMG/TYCOM/(DTG)//(APPENDIX T)

1. IAW REFS A AND B, USS (SHIP NAME SSN/SSBN HULL NO.) AND CREW ARE REPORTED READY FOR SEA TRIALS WITH THE FOLLOWING EXCEPTIONS:

A. COMPLETION OF FAST CRUISE.

B. REMOVAL OF SHORE SERVICE CONNECTIONS.

2. REQUEST PERMISSION TO START FAST CRUISE.//

BT

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APPENDIX AI

SAMPLE SHIP MESSAGE TO TYCOM CONCERNING READINESS FOR SEA TRIALS

(SUBMARINES ONLY)

FM USS (SHIP NAME)//

TO TYCOM//N4/40/405//

INFO COMSUBDEVGRU ONE SAN DIEGO CA//N3//

COMSUBGRU NO.//N5//

COMSUBRON NO.//

BT

UNCLAS //N09094//

GENADMIN/SUPERVISING AUTHORITY/-/(MONTH)//

SUBJ/(SUBS) USS (SHIP NAME SSN/SSBN HULL NO.) MATERIAL CERTIFICATION//

REF/A/DOC/CINCLANTFLT/CINPACFLTINST 4790.3//

AMPN/REF A IS JOINT FLEET MAINTENANCE MANUAL//

RMKS/1. FAST CRUISE COMPLETED (TIME AND DATE).

2. IAW REF A, USS (SHIP NAME SSN/SSBN HULL NO.) AND CREW REPORTED READY TO PROCEED ON SEA TRIALS WITH THE FOLLOWING EXCEPTIONS:

A. REMOVAL OF SHORE SERVICE CONNECTIONS.

B.

3. MATERIAL CONDITION SUPPORTS ADEQUATE CREW REST FOR UNDERWAY AT (TIME AND DATE).

4. REQUEST PERMISSION TO COMMENCE SEA TRIALS.//

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APPENDIX AJ

SAMPLE TYCOM MESSAGE CONCERNING RESUMPTION OF

SEA TRIALS COMPLETION PREREQUISITES FOR INDUSTRIAL ACTIVITY AVAILABILITIES

GREATER THAN SIX MONTHS DURATION (SUBMARINES ONLY)

FM TYCOM//N43//

TO COMNAVSEASYSCOM WASHINGTON DC//PMS 393 (SSN)/PMS 396 (SSBN)/PMS350 (SSN21)/08O//

ISIC//

SUPERVISING AUTHORITY//CODES//

USS (SHIP NAME)//

INFO CNO WASHINGTON DC//N87//

FLTCINC//N43//

DIRSSP WASHINGTON DC (SSBN)//205//

SUBOPAUTH//CODES//

COMSUBDEVGRU ONE SAN DIEGO CA//N4//

COMSUBGRU NO//N4//

BT

UNCLAS //N09094//

GENADMIN/TYCOM/-/(MONTH)//

SUBJ/(SUBS) USS (SHIP NAME SSN/SSBN HULL NO.) SEA TRIAL RESUMPTION AND INDUSTRIAL ACTIVITY AVAILABILITY COMPLETION PREREQUISITES//

REF/A/RMG/TYCOM/(DTG)//(APPENDIX T)

REF/B/DOC/CINCLANTFLT/CINCPACFLTINST 4790.3/VOLUME V//

AMPN/REF B IS JOINT FLEET MAINTENANCE MANUAL/QUALITY MAINTENANCE//

REF/C/DOC/NAVSEA 0924-LP-062-0010//

AMPN/REF C IS SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL//

RMKS/1. REF A SPECIFIED PREREQUISITES IN SUPPORT OF USS (SHIP NAME SSN/SSBN HULL NO.) FAST CRUISE, INITIAL INDUSTRIAL ACTIVITY AVAILABILITY SEA TRAILS AND COMPLETION. THESE TRIALS WERE ACCOMPLISHED AND (INDUSTRIAL ACTIVITY NAME) INDUSTRIAL ACTIVITY HAS CONDUCTED REPAIRS TO USS (SHIP NAME) REQUIRING ADDITIONAL SEA TRIALS. THIS MSG PROVIDES TO ALCON REPORTS AND AUTHORIZATIONS PREREQUISITE TO COMMENCING ADDITIONAL SEA TRIALS:

A. SUPERVISING AUTHORITY SHALL DRAFT REVISED SEA TRIAL AGENDA TO SUPPORT THE TRIALS. THIS AGENDA SHALL BE FORMALLY APPROVED BY COMSUBDEVGRU ONE (ISIC) (ACTING FOR TYCOM) AND CONCURRED IN BY NAVSEA PRIOR TO CONDUCT OF SEA TRIALS.

B. ISIC MSG REPORT TO TYCOM THAT THE MATERIAL CONDITION OF THOSE SUBSAFE CERTIFICATION BOUNDARY PARTS OF USS (SHIP NAME) INSTALLED, REPAIRED AND/OR TESTED BY SHIP'S FORCE IS SATISFACTORY IAW REF B FOR COMMENCING SEA TRIALS. (FORMAT OF APPENDIX AF)

C. SUPERVISING AUTHORITY MSG REPORT TO NAVSEA, INFO TYCOM, THAT MATERIAL CONDITION OF SYSTEMS AND EQUIPMENTS INSTALLED, REPAIRED AND/OR TESTED BY INDUSTRIAL ACTIVITY IS SATISFACTORY FOR CONDUCT OF SEA TRIALS. AS A MINIMUM, REPORT SHOULD STATE STATUS OF ALL INCOMPLETE CAT 1A AUDIT ITEMS AND THAT ALL WORK HAS BEEN PERFORMED IAW REF B. (APPENDIX AA)

D. USS (SHIP NAME) MSG REPORT TO TYCOM STATING THAT CREW AND SHIP ARE READY FOR SEA TRIALS LISTING EXCEPTIONS. (FORMAT OF APPENDIX AI)

E. NAVSEA MSG TO TYCOM RECERTIFYING MATERIAL CONDITION OF USS (SHIP NAME) FOR SPECIFIC TRIAL OPERATING DEPTH. (APPENDIX AK)

F. TYCOM MSG TO USS (SHIP NAME) GRANTING PERMISSION TO CONDUCT SEA TRIALS. (FORMAT OF APPENDIX AL)

2. USS (SHIP NAME SSN/SSBN HULL NO.) SEA TRIALS WILL BE UNDER OPCON OF .

3. CO, USS (SHIP NAME SSN/SSBN HULL NO.) IS REQUESTED TO PROVIDE SEA TRIAL SITREPS AT INTERVALS OF 24 HRS OR LESS AND IDENTIFY ITEMS MANDATORY FOR CORRECTION PRIOR TO COMPLETION OF INDUSTRIAL AVAILABILITY.

4. FOLLOWING REPORTS AND AUTHORIZATIONS ARE PREREQUISITES TO INDUSTRIAL AVAILABILITY COMPLETION:

A. IAW REF C, SUPERVISING AUTHORITY MSG REPORT TO NAVSEA AND TYCOM REPORTING COMPLETION OF AUTHORIZED WORK AND CAT 1A AUDIT ITEMS LISTING EXCEPTIONS. MSG SHOULD RECOMMEND (TYPE OF AVAILABILITY) COMPLETION AND LIST PROPOSED GUARANTEE WORK ITEMS. (APPENDIX AB)

B. IAW REF C, NAVSEA MSG TO TYCOM CERTIFYING MATERIAL CONDITION OF USS (SHIP NAME SSN/SSBN HULL NO.) IS SATISFACTORY FOR UNRESTRICTED OPERATIONS TO DESIGN TEST DEPTH. (APPENDIX AM)

C. ISIC/USS (SHIP NAME SSN/SSBN HULL NO.) MSG TO TYCOM REPORTING MATERIAL CONDITION OF SHIP AND URO MRC STATUS SUBSEQUENT TO SEA TRIALS. (APPENDIX AG)

D. IAW REF C, TYCOM MSG TO CO, USS (SHIP NAME SSN/SSBN HULL NO.) AUTHORIZING CONDUCT OF UNRESTRICTED OPERATIONS TO DESIGN TEST DEPTH. (APPENDIX AE)

5. MSGS LISTED IN PARA 1 THROUGH 4 ABOVE SHOULD BE ASSIGNED APPROPRIATE PRECEDENCE AND PARALLELED BY PHONCON TO ACTION ADDEES CITING DTG OF FORTHCOMING MSG. ALL ADDEES OF THIS MSG TO BE INCLUDED AS ADDEES ON MSG LISTED IN PARA 1 THROUGH 4 ABOVE.//

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APPENDIX AK

SAMPLE NAVSEA MESSAGE TO TYCOM CONCERNING SHIP SUBSAFE MATERIAL CONDITION AND DEPTH RECOMMENDATION FOR FOLLOW-ON SEA TRIALS (SUBMARINES ONLY)

FM COMNAVSEASYSCOM WASHINGTON DC//

TO COMSUB(LANT/PAC) (NORFOLK VA/PEARL HARBOR HI)//

INFO CNO WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR HI)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUBGRU (NO.)

COMSUBRON (NO.)//

USS (SHIP NAME)//

(SUPERVISING AUTHORITY)//

BT

UNCLAS //N09094//

MSGID/GENADMIN/COMNAVSEASYSCOM//

SUBJ/(SUBS) SUBSAFE MATERIAL CONDITION READINESS AND DEPTH RECOMMENDATION FOR (FOLLOW-ON(1)) SEA TRIALS OF USS (SHIP NAME/HULL NO.)//

REF/A/DOC/NAVSEA 0924-LP-062-0010//

REF/B/MSG/(SUPERVISING AUTHORITY)/(DTG)//(APPENDIX AA)

REF/C/LTR/NAVSEA (SER NO./DATE)//

REF/D/LTR/COMSUB(LANT/PAC)/(SER NO./DATE)//

NARR/REF A IS THE SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL. REF B IS SUPERVISING AUTHORITY REPORT OF USS (SHIP NAME/HULL NO.) READINESS FOR (FOLLOW-ON(1)) SEA TRIALS. REF C CONCURRED IN THE (FOLLOW-ON(1)) SEA TRIAL AGENDA FOR USS (SHIP NAME/HULL NO.). REF D APPROVED OF THE (FOLLOW-ON(1)) SEA TRIALS AGENDA FOR USS (SHIP NAME/HULL NO.).//

RMKS/1. IAW REF A, AND AS REPORTED BY REFERENCE REF B, THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED, AND/OR TESTED BY THE INDUSTRIAL ACTIVITY IS CERTIFIED SATISFACTORY FOR (FOLLOW-ON(1)) SEA TRIALS TO TEST DEPTH.

2. SUBJECT TO CONFIRMATION BY TYCOM THAT CERTIFICATION REQUIREMENTS OF REF A HAVE BEEN SUSTAINED FOR THE REMAINDER OF THE SUBSAFE CERTIFICATION BOUNDARY, NAVSEA RECOMMENDS AUTHORIZED DIVING UNDER DELIBERATE AND CONTROLLED CONDITIONS TO TEST DEPTH IAW THE (FOLLOW-ON(1)) SEA TRIALS AGENDA CONCURRED IN BY REF C AND APPROVED BY REF D. (SUBJECT TO THE FOLLOWING RESTRICTIONS: LIST ANY RESTRICTIONS WHICH MAY BE APPLICABLE).

3. REQUEST NAVSEA PMS( ) BE INFO ADDEE ON ALL SEA TRIAL SITREPS.//

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SUPERSCRIPT:

(1) UPCOMING TRIALS WHICH ARE SUBJECT OF THIS CERTIFICATION (E.G., SECOND SEA TRIALS, ETC.).

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APPENDIX AL

SAMPLE TYCOM MESSAGE TO SHIP CONCERNING FOLLOW-ON

SEA TRIALS DEPTH AUTHORIZATION (SUBMARINES ONLY)

FM COMSUB(LANT/PAC) (NORFOLK VA/PEARL HARBOR HI)//

TO USS (SHIP NAME)//

INFO CNO WASHINGTON DC//

COMNAVSEASYSCOM WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR HI)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUBGRU (NO.)//

COMSUBRON (NO.)//

(SUPERVISING AUTHORITY)//

BT

UNCLAS //N09094//

MSGID/GENADMIN/COMSUB(LANT/PAC)//

SUBJ/(SUBS) USS (SHIP NAME/HULL NO.) (FOLLOW-ON(1)) SEA TRIALS DEPTH AUTHORIZATION//

REF/A/MSG/COMNAVSEASYSCOM/(DTG)//(APPENDIX AK)

REF/B/LTR/NAVSEA (SER NO./DATE)//

REF/C/LTR/COMSUB(LANT/PAC) (SER NO./DATE)//

NARR/REF A IS NAVSEA SUBSAFE MATERIAL CONDITION READINESS REPORT AND (FOLLOW-ON(1)) SEA TRIALS DEPTH RECOMMENDATION FOR USS (SHIP NAME/HULL NO.). REF B CONCURRED IN THE (FOLLOW-ON(1)) SEA TRIALS AGENDA FOR USS (SHIP NAME/HULL NO.). REF C APPROVED THE (FOLLOW-ON(1)) SEA TRIALS AGENDA FOR USS (SHIP NAME/HULL NO.).//

RMKS/1. REF A CERTIFIED THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED, AND/OR TESTED BY THE INDUSTRIAL ACTIVITY IS SATISFACTORY FOR (FOLLOW-ON(1)) SEA TRIALS TO TEST DEPTH.

2. THIS MSG CONFIRMS THAT THE CERTIFICATION OF THE REMAINDER OF ITEMS WITHIN SUBSAFE CERTIFICATION BOUNDARY OF USS (SHIP NAME/HULL NO.) HAS BEEN SUSTAINED. ACCORDINGLY, THE STATUS OF THE SUBSAFE CERTIFICATION BOUNDARY OF USS (SHIP NAME/HULL NO.) IS SATISFACTORY FOR (FOLLOW-ON(1)) SEA TRIALS TO TEST DEPTH (SUBJECT TO RESTRICTIONS IN PARA 2 OF REF A IF ANY ARE IDENTIFIED).

3. USS (SHIP NAME/HULL NO.) IS AUTHORIZED TO DIVE UNDER DELIBERATE AND CONTROLLED CONDITIONS TO (SPECIFIED) DEPTH IAW THE (FOLLOW-ON(1)) SEA TRIALS AGENDA CONCURRED IN BY REF B AND APPROVED BY REF C.//

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SUPERSCRIPT:

(1) UPCOMING TRIALS WHICH ARE SUBJECT OF THIS CERTIFICATION (E.G., SECOND SEA TRIALS, ETC.).

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APPENDIX AM

SAMPLE NAVSEA MESSAGE TO TYCOM CONCERNING MATERIAL CERTIFICATION

AND RECOMMENDATION FOR URO (SUBMARINES ONLY)

FM COMNAVSEASYSCOM//

TO COMSUB(LANT/PAC) (NORFOLK VA/PEARL HARBOR)//

INFO CNO WASHINGTON DC//

CINC(LANT/PAC)FLT (NORFOLK VA/PEARL HARBOR HI)//

(DIRSSP WASHINGTON DC FOR SSBN)//

COMSUBGRU (NO.)//

COMSUBRON (NO.)//

USS (SHIP NAME)//

(SUPERVISING AUTHORITY)//

BT

UNCLAS //N09094//

MSGID/GENADMIN/COMSUB(LANT/PAC)//

SUBJ/(SUBS) RECOMMENDATION FOR UNRESTRICTED OPERATIONS FOR USS (SHIP NAME/HULL NO.)//

REF/A/DOC/NAVSEA 0924-LP-062-0010//

REF/B/MSG/(SUPERVISING AUTHORITY)/(DTG)//(APPENDIX AB)

REF/C/DOC/OPNAVINST 9110.1//

NARR/REF A IS THE SUBMARINE SAFETY (SUBSAFE) REQUIREMENTS MANUAL. REF B IS (SUPERVISING AUTHORITY) REPORT OF SATISFACTORY SUBSAFE MATERIAL CONDITION OF USS (SHIP NAME/HULL NO.) FOR THOSE PARTS INSTALLED, REPAIRED, AND/OR TESTED BY THE INDUSTRIAL ACTIVITY. REF C CONTAINS POLICY FOR SUBMARINE TEST AND OPERATING DEPTHS.//

RMKS/1. IAW REF A, REF B REPORTED THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED, AND/OR TESTED BY THE INDUSTRIAL ACTIVITY IS SATISFACTORY FOR UNRESTRICTED OPERATIONS TO TEST DEPTH. REF B ALSO REPORTED SATISFACTORY COMPLETION OF ALL SEA TRIALS, COMPLETION OF CONTROLLED DIVES, AND CORRECTION OF MANDATORY SEA TRIAL DEFICIENCIES.

2. IAW REFS A AND C, NAVSEA CERTIFIES THAT THE SUBSAFE MATERIAL CONDITION OF THOSE PARTS OF USS (SHIP NAME/HULL NO.) INSTALLED, REPAIRED, AND/OR TESTED BY THE INDUSTRIAL ACTIVITY IS SATISFACTORY AND NO OUTSTANDING DEPTH LIMITING DISCREPANCIES EXIST.

3. SUBJECT TO CONFIRMATION BY TYCOM THAT REF A CERTIFICATION REQUIREMENTS HAVE BEEN SUSTAINED FOR THE REMAINDER OF THE SUBSAFE CERTIFICATION BOUNDARY AND, IAW REF A AND C, NAVSEA RECOMMENDS THAT USS (SHIP NAME/HULL NO.) BE AUTHORIZED UNRESTRICTED OPERATIONS TO TEST DEPTH SUBJECT TO COMPLIANCE WITH REF A (WITH THE FOLLOWING RESTRICTIONS: LIST ANY RESTRICTIONS WHICH MAY BE APPLICABLE).

4. URO MRC PERIODICITIES REQUIRED BY REF A SHALL COMMENCE ON (DATE).//

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APPENDIX AN

MINIMUM SEA TRIALS REQUIREMENTS FOR INDUSTRIAL ACTIVITY

AVAILABILITIES GREATER THAN SIX MONTHS DURATION (SUBMARINES ONLY)

1. Sea Trial Policy. The following applies to the conduct of trials and tests associated with ships following major industrial activity availabilities, NAVSEA or David Taylor sponsored Trials/Tests or any other situation where the ship is requested to conduct trials or tests:

a. No test or trial event shall be conducted that requires crew intervention to avoid exceeding normal operating limits. Trial agendas will be based on the expectation that the ship will remain within the normal operating limits of the SOE and at angles less than 30 degrees.

b. The trial director must be prepared to project whether the next event might exceed normal operating limits based on the empirical results of the previous event. A run that is predicted to exceed normal operating limits should be deleted along with the more demanding runs of that sequence.

c. Any run which will result in exceeding normal operating limits of the SOE or 30 degree angles but which is essential to provide adequate test data must be specifically approved by the TYCOM. The test/trial sponsor will obtain this permission.

d. A violation of the SOE limit or exceeding a 30 degree angle, not previously approved, should be reported by unit SITREP. The TYCOM will resolve the situation.

e. Specific written approval by the TYCOM is not required to operate outside the upper limits of the SOE, i.e., shallow and fast, while conducting the following operations during Sea Trials or tests in accordance with an agenda approved by the ISIC, NAVSEA or higher authority:

(1) Conducting full power runs or cavitation curves.

(2) NAVSEA sponsored acoustic trials in accordance with a David Taylor Research Center acoustic trial agenda.

f. In cases where troubleshooting is required, it must meet the following criteria or a formally approved change to the agenda is mandatory.

(1) The troubleshooting does not violate any rules listed in paragraphs 1.a through e of this Appendix or any other requirement of the trials agenda.

(2) The troubleshooting will not result in the ship being in a certain condition before that condition is reached during the normal testing sequence. For example, troubleshooting requiring the ship to be deeper than 200 feet cannot be done until after the deep dive. Likewise, troubleshooting requiring large angles or turn rates cannot be done until after the completion of the steering and diving operational tests and the large angle tests.

2. Test Phasing. The Sea Trials should be scheduled and phased to support actions enroute to the test dive area, in the test dive area, prior to the deep dive, etc., subject to amplifying notes as follows:

a. The following tests and evolutions, as summarized in Appendix AO, will be carried out on the surface enroute to the area and prior to the initial tightness dive:

(1) Underway. Rig for dive. Compensate. Light off heaters to stills.

(2) Conduct operational tests of rudder in normal and emergency modes.

(3) Navigation system check. Take fixes by all electronic, and visual means and compare.

(4) Test underwater log(s) using measured mile or navigational fixes to determine accuracy.

(5) Test accuracy of all bearing transmitters and indicators. Compare sonar, visual and radar bearings.

(6) Check operation of all radars (See Note 1).

(7) Test all radio transmitters, receivers, and electronic equipment (See Notes 2 and 3).

(8) Inspect stern tube packing gland/seals and circulating water flow.

(9) Test Dead Reckoning Analyzer Indicator or Dead Reckoning Analyzer, Dead Reckoning Tracers and Revolution Per Minute (RPM) indication.

(10) Test fathometer(s) and compare with charted soundings.

(11) Run ahead at full power long enough for temperature to reach a stable value (See Note 4). After readings have stabilized, operate rudder through full throw in each direction in normal and emergency power. Time evolution and compare with design values. Check out all modes.

(12) Operate torpedo tube muzzle doors in power (See Note 5). Maximum allowable ahead speed for this ship is ______ knots.

(13) Ahead flank to back emergency .

(14) Run astern up to full power (See Note 7) for 10 minutes or to meet the intent of a more restrictive industrial activity test form. Operate rudder through full throw (measure degrees per second travel and compare with design value).

(15) Fire control system operation (See Notes 2 and 8).

(16) Check operation and accuracy of ship's gyrocompass.

(17) Check operation of magazine flooding if not tested in industrial activity (See Note 2).

(18) Rendezvous with escort. Conduct radio and sonar communications checks (See Note 9).

(19) Test all bottomside sonars.

(20) Test bow/sail and stern plane rigging and tilting in all modes.

(21) Flood variable tanks to computed compensation less a safety factor.

(22) Record megger/capacitance readings of all antennas (as appropriate).

(23) Operate trim and drain pumps (See Note 10).

(24) Test variable ballast system for proper operation.

(25) Test low pressure, normal and EMBT blow systems.

(26) Operate the Emergency Propulsion Motor for 10 minutes.

(27) Motor generator sets aligned for normal operation.

(28) Ventilate ship.

(29) Ensure air banks are charged to within 200 psi of full pressure.

(30) Ensure all MBT blow systems are fully operational and in a normal line up configuration.

(31) Start atmosphere control equipment.

(32) Ship's Force instruct Sea Trial riders on the proper use of Emergency Air Breathing System.

(33) See Note 11.

b. The following tests and evolutions, as summarized in Appendix AO, will be carried out immediately prior to or during the initial tightness dive:

(1) Obtain navigational fix and take soundings. Maximum depth of water is 400 feet as specified in reference (s).

(2) Conduct a running dive to periscope depth. Obtain 1/3 speed trim, if practical, at periscope depth. If sea state requires deeper submergence, proceed slowly to 150 feet (160 feet for SSBN 726 Class submarines) to obtain 1/3 speed trim (See Note 12).

(3) Check operation of ship control systems, including depth indication (See Note 13).

(4) Shoot pyrotechnics from each ejector (launcher) by hand and impulse methods, as applicable (See Notes 14 and 15).

(5) Communicate with escort on WQC at each depth increment or at 10 minute intervals, whichever is sooner. If communications are lost, return to depth at which communications can be established before continuing (See Note 9).

(6) All hands inspect for leaks and report them.

(7) Operate all periscopes checking optics and leakage. Operate all masts.

(8) Test full throw of rudder and planes at slow speeds.

(9) Test operation of trim and drain system discharging to sea.

(10) Test all sonar equipment, including Emergency Underwater Telephone (BQC), on each hydrophone.

(11) Comply with ASW test program regarding shooting of water slugs. Event is not required by the TYCOM if ASW test program does not require (See Notes 14 and 15).

(12) Snorkel on each engine designed for snorkeling. Test operation of stills and air compressors (See Notes 2, 15 and 16).

(13) Operate all hull and back-up valves and equalize sea pressure on all systems designed for test depth (See Notes 15, 17 and 18).

(14) Check hovering system (See Notes 2 and 15).

(15) Shaft Seal Operations.

(16) Conduct an EMBT blow from 200 feet keel depth. Check bank pressure before and after surfacing. Surfacing with EMBT blow may be delayed to accommodate additional testing or transit as explained in Appendix AO.

(17) See Note 11.

(18) Test the SPM (See Note 30).

(19) Vent the fuel system after diving if system is sea pressure compensated.

c. The following tests and evolutions, as summarized in Appendix AO, will be carried out following the initial tightness dive and prior to the deep dive:

(1) Six hours of ISE for crew training (See Note 19).

(2) Charge air banks and battery as necessary. The ship may be submerged while charging air banks provided the depth of the ship does not exceed other guidelines in this instruction or those of the flooding bill or ship's operating procedures.

(3) Detach escort after initial tightness dive. Escort will then proceed to station for deep dive. Ensure that deep dive rendezvous time and location are clearly established before escort is released. The escort may be detached after completing all initial tightness dive events except the surfacing using EMBT blow to accommodate additional testing or the transit as described in Appendix AO.

(4) Operate IFF and ESM equipment. If possible, use aircraft (See Note 2).

d. The following tests and evolutions, as summarized in Appendix AO, will be carried out immediately prior to or during the deep dive:

(1) Ensure that air banks are charged to within 200 psi of full pressure.

(2) Line up MBT system for normal operation.

(3) Take soundings. Maximum water depth is given in reference (s). Accurately fix the ship's position within the specified dive area (reference (s)).

(4) Submerge to periscope depth and obtain slow speed trim.

(5) Obtain stop trim. Take readings and water samples required to make a check of ballasting (See Note 20).

(6) Trim ship to maintain neutral buoyancy (See Note 21).

(7) Line up propulsion plant for maximum reliability in accordance with ship's instructions.

(8) Rig ship for deep submergence. All systems should be in the maximum secure condition with unnecessary sea systems isolated (See Note 22).

(9) Station additional personnel throughout the ship to inspect for leaks.

(10) At 150 feet, 200 feet and then 200 feet increments above one-half maximum operating depth and every 100 feet or other lesser specified increments thereafter down to the maximum authorized operating depth:

(a) Inspect for leaks.

(b) Adjust trim (See Note 21).

(c) Communicate with escort at each depth increment or at 10 minute intervals, whichever is sooner. If communications are lost, return to depth at which communications can be re-established before continuing (See Note 9).

(11) At depths listed for hull valve cycling in reference (ac) (as applicable):

(a) Check accuracy of depth gauges and repeater (See Note 13).

(b) Conduct operational test of signal ejectors or launchers (See Note 14).

(c) Check shaft bearings and stern tubes for excessive heating, leakage and noise. Sealol shaft seals must be tested at each depth specified in reference (ac), testing one seal for 20 minutes and shifting to the other seal for 20 minutes before leaving each specified depth.

(d) Cycle rudder and planes through full throw to check for binding (See Note 23).

(e) Operate all hull and back-up valves (using remote closures, as applicable, from flooding control stations) of seawater systems required to maintain propulsion and other functions vital to the ship's operation at increments of depth specified in reference (ac) (See Note 17).

NOTE: REQUIRED SYSTEMS ARE LISTED IN PARAGRAPH 4.B. OF REFERENCE (AC). OBSERVE RESTRICTION ON OPERATION OF SYSTEMS LISTED IN PARAGRAPH 4.D. OF REFERENCE (AC).

(f) Check operation of bulkhead flappers and watertight doors for binding (excluding lower escape hatches).

(g) Operate trim and drain pumps, discharging to sea.

(h) Conduct operational test of torpedo tubes (See Note 14).

(i) Vent negative tank inboard (if installed) (See Notes 15 and 24).

(j) Cycle main vents to check for binding. Main vents will be cycled hydraulically at each depth except for test depth, where they will be cycled manually.

(k) Equalize TDU with sea pressure through trim line, then cycle the muzzle valve.

NOTE: DURING SEA TRIALS DO NOT OPERATE TDUs WITH BALL VALVES BELOW 200 FEET OR TDUs WITH FLAPPER VALVES BELOW 150 FEET.

(12) At maximum authorized operating depth:

(a) Repeat item (11) (a) - Depth gauges and repeaters.

(b) Shoot pyrotechnics from each signal ejector or launcher by impulse and hand, as applicable (See Notes 14 and 15).

(c) Repeat item (11) (c) - Shafting and bearings.

(d) Repeat item (11) (e) - Hull and back-up valves.

(e) Repeat item (11) (f) - Bulkhead flappers and watertight doors.

(f) Repeat item (11) (g) - Trim and drain pumps.

(g) Repeat item (11) (h) - Torpedo tubes.

(h) Repeat item (11) (i) - Negative tank.

(i) Equalize sea systems and cycle hull and back-up valves as specified in reference (ac) (See Note 17).

(j) Repeat item (11) (j) - Cycle main vents, manually only, and check for binding.

(13) Prior to blow, visually inspect discharge of automatic drains in each EMBT quadrant for seawater leakage. Surface fully with EMBT blow from maximum authorized operating depth (not to exceed maximum depth permitted by the SOE at the initial speed required for the test). Check air bank pressures before and after blow.

(14) See Note 11.

e. The following tests and evolutions will be carried out submerged following the deep dive:

(1) Steering and diving operation at full speed (See Notes 25 and 26).

(2) Full power run (See Notes 6, 26 and 27).

(3) Steep angles - operate ship through several depth changes using large up and down angles to check operation of ship machinery (See Notes 26 and 28).

(4) Time raising each periscope and mast at maximum depth and speed for which they are designed. Check training feature where applicable.

(5) Run and observe air conditioning plants throughout trials noting deficiencies. Operate Lithium Bromide air conditioning plant to demonstrate ability to carry entire maximum existing ship's air conditioning load, or 100 percent capacity.

(6) Run and observe refrigeration plant throughout trials noting deficiencies.

(7) See Note 11.

(8) Comply with ASW test program regarding shooting of water slugs and testing of torpedo tubes (See Notes 14 and 15).

f. The following tests and evolutions will be carried out on the surface following the deep dive:

(1) Note condition of periscope optics.

(2) Measure resistance to ground of all external electrical cables.

(3) Take radio antenna megger/capacitance readings (as appropriate) immediately after surfacing, again in one-half hour, and compare with readings obtained in item 2.a.(22) of this appendix.

(4) Measure resistance across and to ground from each side of all sonar hydrophones, projectors, and transducers (See Note 29).

NOTES

1. Demonstrate accuracy by conducting simultaneous radar and visual plot.

2. Event is optional with regard to sequence. May be conducted at any time during Sea Trials and is not a prerequisite to deep dive. If listed with initial tightness dive events, completion is not mandatory prior to proceeding with remainder of trials.

3. Test on all possible antenna combinations including emergency antennas and emergency radio equipment.

4. Log RPM, ship's speed, temperatures, pressures, etc. Refer to reference (u) regarding depth of water.

5. If ASW test program does not specify ship's speed, conduct with ship at maximum ahead speed.

6. The full power run with an ahead flank bell is to be terminated with a back emergency bell, consistent with current Main Propulsion Operating Limits (shaft torque is not a limiting factor in this test). The duration of the back emergency bell will be limited to 45 seconds, to be followed immediately by an appropriate ahead bell. The 45 second limit will:

a. Standardize the crashback requirements throughout the submarine force.

b. Provide a backing transient similar to that experienced during a stern plane jam.

c. Be short enough that no ship will gather sternway.

7. Full power run astern to be consistent with backing pressure limitations on plane rudder rams and within turbine limitations.

8. As required by Underway Consolidated Operability Test, check target designation system, alignment of sensors to bench marks and transmissions to receivers. Determine lost motion. Run test problems on position keeper and angle solver, etc. Conduct transmission checks to tubes.

9. In the execution of any Sea Trial, whether escorted or not, submarine COs are reminded of their responsibility to communicate with escorts and/or shore authorities within prescribed, previously agreed upon, time limits to avoid initiation of inadvertent lost contact or submarine disaster procedures.

10. Pumps should be tested in industrial activity, prior to Sea Trials, to determine that they can pump against a test depth head.

11. Additional requirements may be imposed at the discretion of the CO.

12. Use conservative angles and speed on initial dive.

13. Compare all depth and pressure gauges; check operation of planes and rudder in all modes, etc. Depth and pressure gauges should be checked as soon as the next specified depth is reached.

14. Integrity of torpedo tubes, launchers and signal ejectors shall be established by admitting sea pressure through equalizing lines or flooding connection and the muzzle doors operated before conducting operational tests. Shoot water slugs from torpedo tubes as required by ASW test program down to ship/torpedo tube limiting depth, whichever is less. Shoot pyrotechnics from signal ejectors or launchers on initial tightness dive and at test depth on deep dive.

15. Those seawater systems which are not required for normal safe operation of the ship at test depth but which have been designed for and may be subjected to test depth pressure should not be subjected to submergence pressure during the initial dive to any specified depth, e.g., blown sanitary tanks (See reference (ac)).

16. Check operation of electrodes, head valve and each snorkel safety circuit. Demonstrate operation of air compressors and stills, if possible, while snorkeling.

17. Depth increments for cycling vital sea valves are as set forth in reference (ac).

18. This evolution (initial operation of hull and back-up valves in fully submerged condition) at depths other than specified in reference (ac) is intended for crew training and is not technically required. Evolution may be abbreviated or deleted on case basis with concurrence of the embarked TYCOM representative.

19. Each person involved in Sea Trials should be allowed to obtain a minimum of six hours of continuous, uninterrupted sleep during any 24 hour period.

20. Stop trim to be conducted at the most desirable time during the trials.

21. Deep dive should be conducted using moderate speed and constantly adjusting trim at depths indicated in paragraph 2.d.(10) in this Appendix to maintain neutral buoyancy. Moderate speed shall be defined as that range of speed that allows the ship optimum recovery (as shown on recovery curves) if loss of stern plane control and/or flooding occurs.

22. Reference (ac) prescribes procedures for system operation during deep dive.

23. Cycling of rudder and planes through full throws should be limited to test depth minus 100 feet.

24. Test to demonstrate the ability of the tank to withstand external pressure.

25. At maximum safe speed, operate the rudder and planes through full throw in both directions in normal and emergency power. Time evolutions and check against design values.

26. Note that the required sequence of events is initial dive, deep dive, full power run submerged, back emergency, then high speed maneuverability and steep angle tests.

27. Run full power submerged for at least two hours. CO may schedule full power run for four hours if he deems it necessary. Submarine depth during the submerged full power run should be consistent with the SOE, based on the EMBT blow from maximum authorized operating depth being previously accomplished. Those ships which are limited in depth should conduct full power trials at a depth not to exceed maximum operating depth minus 100 feet.

28. Completion of full power, back emergency and deep dive runs are prerequisites for high speed maneuverability and steep angle tests. Initial high speed ship control tests, steep angle tests and exercises during major casualties shall be conducted in water that does not exceed one and one-half times design test depth.

29. The spherical array need not be done if an array purge or power into the array measurements are scheduled at a later date.

30. The following table summarizes SPM limitations:

TABLE 1. SPM Limitation Table

* Do not violate the SOE of the ship.

Ref: NAVSEA MSG 282003Z June 88

APPENDIX AO

SUMMARY OF SIGNIFICANT POST REPAIR SEA TRIAL REQUIREMENTS (SUBMARINES ONLY)

* - May be delayed to permit additional testing, commencing pre-transit valve cycling or transit submerged. However, first surface after initial tightness dive must be by EMBT blow from 200 feet and must be conducted prior to deep dive.

** - An escort is required on the initial tightness dive and on subsequent first dives to any deeper depths, i.e., the first dive to any depth requires an escort. EMBT blow escort requirements given in paragraph 3.6.8.4.9 of this chapter.

*** - No post initial tightness dive evolution will be conducted at a depth deeper than a previous depth at which valve cycling in accordance with reference (ac) has been accomplished.

# - One half test depth plus fifty feet for SSN 688 Class submarines.

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