DDG-51

              DDG 51 CLASS ADVISORY NR 17-94                                    

                                                                                

      5 INCH 54 CALIBER AMMUNITION STRIKEDOWN EQUIPMENT                         

            CASUALTY MODE OPERATION PROCEDURES                                  

                                                                                

 REF/A/DOC/NAVSEA/15DEC89//                                                     

                                                                                

 REF/B/DOC/NAVSEA/30APR90//                                                     

                                                                                

 NARR/REF A IS TECH MANUAL SW323-AJ-MMA-010/88733.  REF B IS TECH               

 MANUAL SW323-AJ-SSM-010.//                                                     

                                                                                

 RMKS/1.  THIS CLASS ADVISORY PROVIDES PROCEDURES FOR CASUALTY                  

 MODE OPERATION OF SUBJ EQPT.  CASUALTY MODE OPERATION BYPASSES                 

 SAFETY INTERLOCKS AND IS FOR EMERGENCY USE ONLY.  THIS CLASS                   

 ADVISORY PROMULGATES ACN 1/A TO REF A AND ACN 1/B TO REF B.                    

                                                                                

 2.  BACKGROUND.  THE SUBJ EQPT IS DESIGNED WITH AN EMERGENCY                   

 CAPABILITY FOR OPERATION IN THE EVENT OF ELECTRICAL CASUALTIES.                

 THIS CAPABILITY IS INTENDED TO PERMIT PLATFORM MOVEMENT TO A SAFE              

 POSITION, UNTIL THE CASUALTY HAS BEEN CORRECTED AND NORMAL                     

 OPERATION MAY RESUME.  THESE PROCEDURES ARE TO BE EMPLOYED ONLY                

 WHEN NECESSARY TO CONTINUE STRIKEDOWN/UP IN THE EVENT OF ELECTRIC              

 POWER LOSS OR ELECTRIC CONTROL SYSTEM FAILURE.                                 

                                                                                

 3.  ACTION.  DDG 51 CLASS SHIPS SHALL USE THE PROCEDURES                       

 CONTAINED IN PARAS 4 THROUGH 7 FOR CASUALTY MODE OPERATION.                    

 RECORD THESE CHANGES AS ACN 1/A IN THE RECORD OF CHANGES PAGE OF               

 REF A AND AS ACN 1/B IN THE RECORD OF CHANGES PAGE OF REF B.  FOR              

 REF A, THESE PROCEDURES CONSTITUTE NEW SUBCHAPTER 2-5, CASUALTY                

 MODE, OF CHAPTER 2, OPERATION.  FOR REF B, THESE PROCEDURES                    

 CONSTITUTE NEW SUBCHAPTER 4-4, CASUALTY MODE, OF CHAPTER 4,                    

 OPERATION.  EXISTING SUBCHAPTER 4-4, STANDARD LOG FORM, BECOMES                

 NEW SUBCHAPTER 4-5.  ATTACH A COPY OF THIS ADVISORY TO EACH                    

 MANUAL.                                                                        

                                                                                

 4.  SAFETY PRECAUTIONS.  THESE SAFETY PRECAUTIONS APPLY TO THE                 

 PROCEDURES CONTAINED IN PARAS 5-7.  FAILURE TO COMPLY WITH THE                 

 FOLLOWING WARNINGS COULD RESULT IN PERSONNEL INJURY OR DEATH.                  

                                                                                

      A.  CASUALTY MODE OPERATION OF THE EQUIPMENT SHALL ONLY BE                

 PERFORMED WHEN ALL MEANS TO CORRECT THE ELECTRICAL FAILURE HAVE                

 BEEN EXHAUSTED AND THE COMMANDING OFFICER HAS AUTHORIZED CASUALTY              

 MODE OPERATION.                                                                

                                                                                

      B.  IN CASUALTY MODE THE EQUIPMENT IS OPERATED IN A MANUAL                

 MODE THAT BYPASSES ALL THE SYSTEM ELECTRICAL INTERLOCKS.                       

 EXERCISE EXTREME CAUTION.  COMMUNICATION MUST BE ESTABLISHED                   

 BETWEEN ALL LEVELS SERVED.                                                     

                                                                                

      C.  DO NOT OPERATE THE EQUIPMENT WITH THE TRUNK DOORS OPEN.               

                                                                                

      D.  PERSONNEL SHALL NOT RIDE ON THE PLATFORM ASSEMBLY.                    

                                                                                

      E.  DO NOT OPEN ANY TRUNK DOOR UNLESS IT IS CONFIRMED THAT                

 THE PLATFORM IS STOPPED AT THAT LEVEL AND THE PENDANT CONTROL                  

 OPERATOR HAS NO FINGERS TOUCHING THE UP AND DOWN LEVERS.                       

                                                                                

      F.  A HAZARD EXISTS WHEN THE 01 LEVEL HATCH IS OPEN.  ENSURE              

 THAT THE STANCHIONS AND SAFETY CHAINS ARE IN PLACE.  THE                       

 EQUIPMENT PENDANT CONTROL OPERATOR AT THE 01 LEVEL SHALL BE                    

 SECURED WITH A LIFELINE.                                                       

                                                                                

      G.  EQUIPMENT OPERATION IN CASUALTY MODE SHALL BE FROM THE                

 01 LEVEL ONLY WITH PENDANT CONTROL AND WITH THE HATCH OPEN.                    

                                                                                

      H.  WHEN LOOKING INTO THE TRUNK THROUGH A DOOR SILL GAP,                  

 NEVER EXTEND ANY PORTION OF THE HEAD, BODY OR APPENDAGES,                      

 FLASHLIGHT OR OTHER ITEM THROUGH THE GAP INTO THE TRUNK.                       

                                                                                

      I.  PRIOR TO INITIATING PLATFORM MOTION, THE PENDANT CONTROL              

 OPERATOR SHALL REQUEST CONFIRMATION FROM THE PERSONNEL AT THE                  

 LOWER DECK LEVELS THAT THE TRUNK DOORS ARE CLOSED.  DO NOT MOVE                

 THE PLATFORM IF ANY TRUNK DOOR IS OPEN.                                        

                                                                                

 5.  PREPARATION.                                                               

                                                                                

      A.  EQPT REQUIRED.                                                        

           (1)  SOUND POWERED TELEPHONES AT EACH LEVEL SERVICED.                

                                                                                

           (2)  FLASHLIGHT AT EACH LEVEL SERVICED.                              

                                                                                

           (3)  SHIPPING BAND CUTTER (FOR STRIKEDOWN) OR BANDING                

                TOOL (FOR STRIKEUP) AT SECOND PLATFORM LEVEL.                   

                                                                                

           (4)  ELECTRIC PALLET TRUCK AT 01 LEVEL.                              

                                                                                

           (5)  MANUAL PALLET TRUCK AT EACH LOWER LEVEL SERVICED.               

                                                                                

           (6)  PALLET TIEDOWNS IN PALLET STAGING AREA IF PALLETS               

 			ARE TO BE STAGED.                                                           

                                                                                

           (7)  PRY BAR FOR REMOVING BOUND PLATFORM RESTRAINING 	               

 		BARS.                                                                        

                                                                                

           (8)  TOOLS FOR REMOVING DOOR SILLS (ONE HALF INCH DRIVE              

                SOCKET SET OR COMBINATION BOX/OPEN END WRENCHES).               

                                                                                

           (9)  PENDANT CONTROL ASSEMBLY.                                       

                                                                                

      B.  PRIOR TO EQPT CASUALTY MODE OPERATION THE FOLLOWING                   

 STEPS SHALL BE TAKEN:                                                          

                                                                                

           (1)  SECURE ELECTRIC POWER TO THE CONTROLLER BY TURNING              

 			OFF THE POWER DISCONNECT SWITCH ADJACENT TO THE 	                           

 		CONTROLLER.  TAG OUT THE SWITCH.                                             

                                                                                

           (2)  VERIFY AVAILABILITY OF LP AIR SUPPLY.  CHECK 	                  

 		PRESSURE GAGE AT THE MAIN DECK.  DRAIN ANY WATER 		                          

 	TRAPPED IN THE SYSTEM.                                                        

                                                                                

           (3)  ESTABLISH TELEPHONE COMMUNICATIONS BTWN ALL LEVELS              

 			TO BE SERVED.                                                               

                                                                                

           (4)  INSTALL SAFETY STANCHIONS AND CHAINS AROUND THE                 

                HATCHWAY.  OPEN THE 01 LEVEL HATCH AND SECURE IT 	              

 		IN THE OPEN POSITION.                                                        

                                                                                

           (5)  REMOVE DOOR SILLS AT LEVELS TO BE SERVED.  DO NOT               

 			OPEN TRUNK DOOR TO REMOVE DOOR SILL UNTIL 		                                

 	CONFIRMATION IS RECEIVED FROM THE PENDANT CONTROL 		                          

 	OPERATOR THAT THE PLATFORM IS AT THIS LEVEL.  FOR 		                          

 	THIS OPERATION, THE PENDANT CONTROL OPERATOR CAN 		                           

 	STOP THE PLATFORM SUFFICIENTLY CLOSE TO THIS LEVEL 		                         

 	BY LOOKING INTO THE TRUNK FROM THE 01 LEVEL AND 		                            

 	OBSERVING THE APPROX PLATFORM POSITION.                                       

                                                                                

           (6)  PLACE THE SYSTEM IN MANUAL BYPASS MODE BY ALIGNING              

 			THE UP AND DOWN SOLENOID OPERATED AIR VALVES.  THE                          

 			VALVES ARE LOCATED AT THE MAIN DECK STBD FWD 	                              

 		CORNER OF THE EQPT TRUNK EXTERIOR.  AT EACH VALVE:                           

                                                                                

                (A)  REMOVE THE MANUAL LEVER LOCK PIN.                          

                                                                                

                (B)  LIFT THE LEVER DETENT KNOB THEREBY LIFTING 	               

 			THE LEVER DETENT PIN OUT OF THE CAM DETENT.                                 

                                                                                

                (C)  ROTATE THE LEVER NINETY DEGREES TO A POSITION              

                     ALIGNED WITH THE VALVE CENTERLINE.                         

                                                                                

                (D)  RELEASE THE LEVER KNOB ALLOWING THE DETENT 	               

 			PIN TO REST IN THE CAM DETENT.                                              

                                                                                

                (E)  INSERT THE MANUAL LEVER LOCK PIN.                          

                                                                                

           (7)  INSTALL PENDANT CONTROL AT THE 01 LEVEL.                        

                                                                                

           (8)  OPERATE THE EQPT THROUGH AT LEAST ONE COMPLETE 	                

 		CYCLE WITHOUT A LOAD IAW THE FOLLOWING OPERATING 		                          

 	PROCEDURES.                                                                   

                                                                                

      NOTE:  IF THE PLATFORM IS LOADED AT THE TIME OF ELECTRIC                  

 POWER LOSS OR ELECTRIC CONTROL SYSTEM FAILURE, LOWER THE PLATFORM              

 TO THE SECOND PLATFORM LEVEL BY SLIPPING THE HOIST BRAKE WITH THE              

 HOIST BRAKE RELEASE LANYARD.  THE LOAD SHOULD BE REMOVED AT THE                

 SECOND PLATFORM LEVEL LEAVING THE PLATFORM EMPTY.                              

                                                                                

 6.  OPERATING PROCEDURES.                                                      

                                                                                

      A.  THIS PROCEDURE DESCRIBES HOW TO OPERATE THE EQPT IN A                 

 CASUALTY MODE IN THE EVENT OF ELECTRIC POWER LOSS OR ELECTRIC                  

 CONTROL SYSTEM FAILURE IF THE STRIKEDOWN/UP OPERATION MUST                     

 CONTINUE.  IN THE CASUALTY MODE THE EQPT IS OPERATED WITHOUT                   

 INTERLOCKS USING PENDANT CONTROL AND VISUAL OBSERVATION ONLY.                  

                                                                                

      B.  THE EQPT PLATFORM CAN BE MOVED IN THE UP OR DOWN                      

 DIRECTION BY PRESSING THE APPROPRIATE UP OR DOWN LEVER ON THE                  

 PENDANT CONTROL.                                                               

                                                                                

      C.  RAISING THE PLATFORM TO THE 01 LEVEL REQUIRES THE                     

 PENDANT CONTROL OPERATOR TO PRESS THE UP LEVER AND OBSERVE THE                 

 PLATFORM UNTIL IT APPROACHES THE 01 LEVEL AND THEN GRADUALLY                   

 RELEASE THE UP LEVER UNTIL THE PLATFORM IS ALIGNED WITH THE                    

 PALLET TRUCK RAMP.                                                             

                                                                                

      D.  LOWERING THE PLATFORM REQUIRES THE PENDANT CONTROL                    

 OPERATOR TO PRESS THE DOWN LEVER AND COMMUNICATE TO PERSONNEL AT               

 THE LOWER LEVEL TO BE SERVED THAT THE PLATFORM IS IN MOTION.  THE              

 PENDANT CONTROL OPERATOR WILL THEN GRADUALLY RELEASE THE DOWN                  

 LEVER AND BRING THE PLATFORM TO A STOP WHEN THE OBSERVER SAYS                  

 STOP.                                                                          

                                                                                

      E.  RAISING THE PLATFORM WHEN OPERATING BTWN THE SECOND                   

 PLATFORM LEVEL AND MAIN DECK LEVEL REQUIRES THE PENDANT CONTROL                

 OPERATOR TO PRESS THE UP LEVER AND COMMUNICATE TO THE PERSONNEL                

 AT THE LOWER DECKS THAT THE PLATFORM IS IN MOTION.  THE PENDANT                

 CONTROL OPERATOR WILL THEN GRADUALLY RELEASE THE UP LEVER AND                  

 BRING THE PLATFORM TO A STOP WHEN THE OBSERVER SAYS STOP.                      

                                                                                

 7.  SECURING PROCEDURES.                                                       

                                                                                

      A.  IF THE MAIN DECK LEVEL DOOR SILL WAS PREVIOUSLY REMOVED,              

 MOVE THE PLATFORM TO THE MAIN DECK LEVEL.  IF NOT, GO TO STEP                  

 7.B.                                                                           

                                                                                

           (1)  MOVING THE PLATFORM REQUIRES THE PENDANT CONTROL                

 OPERATOR TO PRESS THE UP OR DOWN LEVER AS APPROPRIATE AND                      

 COMMUNICATE TO PERSONNEL AT THE LOWER LEVEL TO BE SERVED THAT THE              

 PLATFORM IS IN MOTION.  THE PENDANT CONTROL OPERATOR WILL THEN                 

 GRADUALLY RELEASE THE DEPRESSED LEVER AND BRING THE PLATFORM TO A              

 STOP WHEN THE OPERATOR SAYS STOP.                                              

                                                                                

           (2)  WHEN THE PLATFORM RESTS AT THE MAIN DECK LEVEL,                 

 OPEN THE TRUNK DOOR, INSTALL THE DOOR SILL AND SECURE THE TRUNK                

 DOOR.                                                                          

                                                                                

      B.  MOVE THE PLATFORM TO THE SECOND PLATFORM LEVEL.                       

           (1)  MOVING THE PLATFORM REQUIRES THE PENDANT CONTROL                

 OPERATOR TO PRESS THE DOWN LEVER AND COMMUNICATE TO THE PERSONNEL              

 AT THE LOWER DECKS THAT THE PLATFORM IS IN MOTION.  THE PENDANT                

 CONTROL OPERATOR WILL THEN GRADUALLY RELEASE THE DEPRESSED LEVER               

 AND BRING THE PLATFORM TO A STOP WHEN THE OBSERVER SAYS STOP.                  

                                                                                

           (2)  WHEN THE PLATFORM RESTS AT THE SECOND PLATFORM                  

 LEVEL, OPEN THE TRUNK DOOR, INSTALL THE DOOR SILL AND SECURE THE               

 TRUNK DOOR.                                                                    

                                                                                

      C.  LOWER THE PLATFORM FROM THE SECOND PLATFORM LEVEL UNTIL               

 IT RESTS ON THE BUFFER SPRINGS.  THIS POSITION CAN BE DETERMINED               

 BY THE PENDANT CONTROL OPERATOR LOOKING INTO THE TRUNK FROM THE                

 01 LEVEL AND DETERMINING THAT THE PLATFORM HAS STOPPED MOVING.                 

                                                                                

      D.  TAKE UP SLACK IN THE HOIST CHAIN.                                     

                                                                                

      E.  SECURE THE LP AIR SUPPLY AND BLEED OFF THE REMAINING AIR              

 PRESSURE.  THE SYSTEM AIR PRESSURE GAGE ON THE MAIN DECK LEVEL                 

 SHOULD READ ZERO PSI.                                                          

                                                                                

      F.  REMOVE THE PENDANT CONTROL.                                           

                                                                                

      G.  CLOSE THE HATCH AND REMOVE THE STANCHIONS AND LIFE                    

 LINES.                                                                         

                                                                                

      H.  RESTORE UP AND DOWN SOLENOID OPERATED VALVES TO                       

 AUTOMATIC SETTING.  DO THE REVERSE OF STEP 5.B(6).                             

                                                                                

      WARNING: STEP 7.H MUST BE ACCOMPLISHED AT CONCLUSION OF                   

 OPERATION TO ENSURE THAT WHEN ELECTRIC POWER IS RESTORED OR THE                

 CONTROL SYSTEM CASUALTY IS REMEDIED THE SYSTEM INTERLOCKS WILL                 

 NOT BE BYPASSED.                                                               

                                                                                

      I.  TAG THE EQPT OUT OF SERVICE.                                          

                                                                                

 8.  FOR COMNAVSURFLANT/COMNAVSURFPAC - RECOMMEND DDG 51 CLASS                  

 SHIPS BE TASKED TO ADHERE TO PARA 3 THROUGH 7 GUIDANCE.                        

                                                                                

 9.  FOR SUPERVISORS - REQUEST ENSURE PARA 3 THROUGH 7 GUIDANCE IS              

 PROVIDED TO CONTRACTORS FOR USE ON HULLS PRIOR TO DELIVERY.                    

                                                                                

 10.  FOR SUPSHIP BATH CODE 241.3 - ENSURE INCORPORATION OF INTENT              

 OF PARA 3 THROUGH 7 GUIDANCE IN NEXT UPDATE OF REFS A AND B.                   

                                                                                

 11.  THIS CLASS ADVISORY DOES NOT AFFECT CSOSS, EOSS, PMS OR                   

 CMMP. IT WILL BE CANCELLED WHEN REFS A AND B HAVE BEEN UPDATED                 

 AND DISTRIBUTED.                                                               

                                                                                

 12.  ORIG POC IS MR. N. SMITHSON, PMS400F511, DSN 332-5981 OR                  

 COMM (703) 602-5981 EXT 133.  TPOC IS MR. F. WEIDNER, SEA 03W46,               

 DSN 332-9391 OR COMM (703) 602-9391 EXT 406.                                   

                                                                                

 13.  MINIMIZE CONSIDERED, R. MC KEE, PMS 400F1.//