(25)
Remove the DO-NOT-OPERATE sign from the external handle of the door.
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747-400 FAULT ISOLATION/MAINT MANUAL
SERVICE DOORS
COMPONENT SHT 102 FIG. QTY ACCESS/AREA REFERENCE
DOOR - AFT POTABLE WATER SERVICE ACCESS 5 1 COMPARTMENT AREA BELOW AFT CARGO CONTAINER 52-49-02
DOORS - AIR CONDITIONING ACCESS 1 5 191AL,191HL,191NL,192AR,192HR, AIR CONDITIONING EQUIPMENT BAY 52-48-01
DOOR - AUXILIARY POWER UNIT ACCESS - LEFT 1 1 317AL, APU COMPARTMENT 52-48-02
DOOR - AUXILIARY POWER UNIT ACCESS - RIGHT 1 1 318AR, APU COMPARTMENT 52-48-02
DOOR - AUXILIARY POWER UNIT BATTERY ACCESS 5 1 BOX COMPARTMENT 315AL, AREA AFT OF STABILIZER 52-49-04
DOOR - CENTER ELECTRONIC ACCESS 1 1 125B, DOOR, ELECTRONIC ACCESS 52-48-04
DOOR - EXTERNAL POWER RECEPTACLE ACCESS 5 1 118AR, MAIN EQUIP CTR 52-49-01
DOOR - FORWARD ELECTRONIC ACCESS 1 1 117AL, MAIN EQUIP CTR 52-48-03
DOOR - FORWARD POTABLE WATER SERVICE ACCESS 5 1 CONTAINER COMPARTMENT AREA AFT OF THE FOWARD CARGO 52-49-02
DOOR - FUELING CONTROL PANEL ACCESS 5 1 SPAR TO MIDSPAR OUTBD MAIN TANK (PART) FRONT 52-49-09
DOOR - PNEUMATIC SYSTEM GROUND SERVICE 5 1 HALF FAIRING WING TO BODY, AFT LOWER 52-49-06
DOOR - REFUELING ACCESS - LEFT 5 1 SPAR TO MID SPAR OUTBD MAIN TANK (PART) FRONT 52-49-09
DOOR - REFUELING ACCESS - RIGHT 5 1 SPAR TO MID SPAR OUTBD MAIN TANK (PART) FRONT 52-49-09
DOOR - STABILIZER JACKSCREW ACCESS 5 1 BULKHEAD 312AR, AREA AFT OF PRESSURE 52-49-05
DOOR - UNDERWING FUEL DRAIN - LEFT 5 1 EQUIPMENT BAY 191GL, AIR CONDITIONING 52-49-08
DOOR - UNDERWING FUEL DRAIN - RIGHT 5 1 EQUIPMENT BAY 192GL, AIR CONDITIONING 52-49-08
DOOR - VACUUM FLUSH SYSTEM LAVATORY SERVICE 5 1 AREA BELOW BULK CARGO COMPARTMENT 52-49-07
PANELS - AIR CONDITIONING ACCESS 1 4 CONDITIONING EQUIPMENT BAY 191EL,191ML,192ER,192MR, AIR 52-48-01
Service Doors - Component Index
Figure 101
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747-400 FAULT ISOLATION/MAINT MANUAL
UNIT ACCESS DOORS, 317AL, 318AR SEE
SHT 3
Service Doors - Component Location
Figure 102 (Sheet 1)
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747-400 FAULT ISOLATION/MAINT MANUAL
FORWARD TRACKS (REF)
TRACK SECTION
TRACK (REF)
SECTION
(REF)
FWD
INBD INNER OPERATING HANDLE (REF)
AFT TRACKS (REF)
LATCH PIN (COMPLETE TRACKS
(4 LOCATIONS) NOT SHOWN)
(REF)
____THE LEFT LATCH
NOTE: PIN OPERATES THE DOOR WARNING SWITCH.
FORWARD ELECTRONIC ACCESS DOOR, 117AL
A
KEEPER FITTING
(REF)LATCH
PIN (REF) TEFLON OPERATING SHAFT BUMPER (REF)(REF) BONDING JUMPER (REF)
BOLT (REF)
HINGE
(REF) OUTER HINGE ARM DOOR (2 LOCATIONS) SKIN (REF)
(REF) DOOR STOP (4 LOCATIONS) (REF) HINGE PIN BOLT FWD
BOLT (REF)(REF)
CENTER ELECTRONIC ACCESS DOOR, 125B
B
Service Doors - Component Location (Details From Sht 1)
Figure 102 (Sheet 2)
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