(6)
AMM 71-11-06/201, Core Cowl Panel
(7)
AMM 78-31-00/201, Thrust Reverser System
(8)
IPC 75-23-02 Fig. 1
(9)
WDM 75-23-11, 75-23-21
(10)
SSM 75-23-01
C.
Access
(1)
Location Zone
415 Engine 1 - Inner Wall of Left Thrust Reverser Half 425 Engine 2 - Inner Wall of Left Thrust Reverser Half 435 Engine 3 - Inner Wall of Left Thrust Reverser Half 445 Engine 4 - Inner Wall of Left Thrust Reverser Half 451 Strut No. 1 - Forward Fairing 461 Strut No. 2 - Forward Fairing 471 Strut No. 3 - Forward Fairing 481 Strut No. 4 - Forward Fairing 452 Strut No. 1 - Torque Box 462 Strut No. 2 - Torque Box 472 Strut No. 3 - Torque Box 482 Strut No. 4 - Torque Box
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75-23-00
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
LOCKING PIN FOR THE
(SHOWN IN OPEN POSITION)
Nacelle Zone Ventilation System Test
Figure 501 (Sheet 1)
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75-23-00
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FWD
ELECTRICAL
START VALVE ACCESS DOOR FORCONNECTOR, DV351 THE TAI VALVE
SEE D
C
BAROMETRIC SWITCH
VENT PORT PLUG
FWD
D
Nacelle Zone Ventilation System Test Figure 501 (Sheet 2)
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75-23-00
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(2) Access Panel
415 Left Thrust Reverser Half - Engine 1 425 Left Thrust Reverser Half - Engine 2 435 Left Thrust Reverser Half - Engine 3 445 Left Thrust Reverser Half - Engine 4 451AR TAI Valve Access Door - Strut 1 461AR TAI Valve Access Door - Strut 2 471AR TAI Valve Access Door - Strut 3 481AR TAI Valve Access Door - Strut 4 452FL Mid Lower Strut Aft Access Door - Strut 1 462FL Mid Lower Strut Aft Access Door - Strut 2 472FL Mid Lower Strut Aft Access Door - Strut 3 482FL Mid Lower Strut Aft Access Door - Strut 4
Figure 502
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D. Preconditions
S 865-024-N00
(1)
These conditions are necessary for this task:
(a)
Electrical Power on (AMM 24-22-00/201).
(b)
Integrated Display System (IDS) serviceable (AMM 31-61-00/501).
(c)
Pneumatic power available (AMM 36-00-00/201).
E.
Procedure
S 865-002-N00
(1) For the applicable engine, open these circuit breakers and attach DO-NOT-CLOSE tags:
(a) P6 Main Power Distribution Panel
1) 6F14 ENG 1 EEAC
2) 6E14 ENG 2 EEAC
3) 6D14 ENG 3 EEAC
4) 6C14 ENG 4 EEAC
S 015-026-N00
(2) Open the left fan cowl panel (AMM 71-11-04/201).
S 045-027-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.
(3)
Do this procedure: Thrust Reverser Deactivation for Ground
Maintenance (AMM 78-31-00/201).
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