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S 416-025-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU CLOSE THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(1)
Close the thrust reversers (AMM 78-31-00/201).
S 416-026-N00
(2)
Close the core cowl panels (AMM 71-11-06/201).
S 416-027-N00
(3)
Close the fan cowl panels (AMM 71-11-04/201).
S 446-028-N00
(4)
Do the activation procedure for the thrust reversers (AMM 78-31-00/201).
TASK 73-11-00-796-005-N00
3. Fuel Distribution System Inspection for Leaks (Fig. 601)
_____________________________________________
A. Special Tools and Equipment
(1)
PWA 85579 - Adapter, Pratt & Whitney, Commercial Products Division, 400 Main Street, East Hartford, CT 06108
B.
Standard Tools and Equipment
(1)
Air Supply - 95-105 psi (655-725 kPa) pressure regulated
C.
Consumable Materials
(1)
D00250 Petrolatum White, VV-P-236
(2)
G00835 Leak Check - Bubble Type
D.
References
(1)
AMM 71-11-04/201, Fan Cowl Panels
(2)
AMM 71-11-06/201, Core Cowl Panels
(3)
AMM 73-11-04/401, Fuel Distribution-Valve Strainer
(4)
AMM 78-31-00/201, Thrust Reverser System
E.
Access
(1)
Location Zone 412 Engine 1 - HPC Case 4 o'clock, Diffuser/Combustor Case 422 Engine 2 - HPC Case 4 o'clock, Diffuser/Combuster Case 432 Engine 3 - HPC Case 4 o'clock, Diffuser/Combustor Case 442 Engine 4 - HPC Case 4 o'clock, Diffuser/Combustor Case
(2)
Access Panel 415 and 416 Thrust Reverser Halves - Engine 1 425 and 426 Thrust Reverser Halves - Engine 2 435 and 436 Thrust Reverser Halves - Engine 3 445 and 446 Thrust Reverser Halves - Engine 4
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SEE A FUEL PUMP SEE B
MAIN GEARBOX (REF) FWD
A
MAIN FUEL
SUPPLY HOSE
(REF) PACKING
FUEL DISTRIBUTION
VALVE STRAINER BOLT
(4 LOCATIONS)
ADAPTER
PACKING
FUEL FWD
DISTRIBUTION VALVE
B
Fuel Distribution System Leak Check Figure 601
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
F. Prepare for the Inspection
S 016-029-N00
(1) Open the fan cowl panels (AMM 71-11-04/201).
S 046-030-N00
WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______
OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF
THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO
EQUIPMENT.
(2)
Do this procedure: Thrust Reverser Deactivation for Ground
Maintenance (AMM 78-31-00/201).
S 016-031-N00
(3)
Open the core cowl panels (AMM 71-11-06/201).
S 016-032-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______
THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS,
INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(4)
Open the thrust reversers (AMM 78-31-00/201).
G.
Procedure
S 016-019-N00
(1)
Remove the strainer from the fuel distribution valve
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