(2)
AMM 71-11-06/201, Core Cowl Panels
(3)
AMM 78-31-00/201, Thrust Reverser System
(4)
AIPC 73-21-07 Fig. 5
(5)
WDM 71-51-15, WDM 71-51-16, WDM 73-12-15, WDM 73-12-25, WDM 73-12-35, WDM 73-12-45, WDM 76-11-11, WDM 76-11-21, WDM 76-11-31, WDM 76-11-41, WDM 77-12-21, WDM 77-12-22, WDM 77-12-23, WDM 77-12-24
(6)
SSM 73-21-01, SSM 76-11-01, SSM 76-11-02, SSM 76-11-03, SSM 76-11-04, SSM 77-12-02
B.
Access
(1)
Location Zones 412 Engine 1 - LPT Case 5:30 o'clock, HPT Case and Diffuser and Combustor Case 3:30 o'clock 422 Engine 2 - LPT Case 5:30 o'clock, HPT Case and Diffuser and Combustor Case 3:30 o'clock 432 Engine 3 - LPT Case 5:30 o'clock, HPT Case and Diffuser and Combustor Case 3:30 o'clock
442 Engine 4 - LPT Case 5:30 o'clock, HPT Case and Diffuser and Combustor Case 3:30 o'clock
(2)
Access Panels
416 Right Thrust Reverser Half - Engine 1
426 Right Thrust Reverser Half - Engine 2
436 Right Thrust Reverser Half - Engine 3
446 Right Thrust Reverser Half - Engine 4
C.
Procedure
S 864-176-N00
(1)
For the applicable engine, open these circuit breakers and install the DO-NOT-CLOSE tags:
(a)
P6 Main Power Distribution Panel
1) 6G15 SCU ALT PWR ENG 1
2) 6G23 ENG SCU 1
3) 6G16 SCU ALT PWR ENG 2
4) 6G24 ENG SCU 2
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73-21-07
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A PROBE (TT3) THERMOCOUPLE EEC
SEE H SEE J
SEE I SEE F SEE J SEE K SUPPORT TUBE
SEE L
SEE M
SEE F
W5J12 ELECTRICAL CONNECTOR
W6P12 ELECTRICAL CONNECTOR
SEE G
SEE F SEE B
FWD
W6 HARNESS
A
EEC Wiring Harness W6 Installation
Figure 405 (Sheet 1)
E44643
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
SEE E
SEE D
EGT (TT4.95) THERMOCOUPLE FWD TERMINAL BOX
SEE C
W6 HARNESS B W6 HARNESS BOLT BRACKET
TERMINAL BOX THERMOCOUPLE EGT (TT4.95) FWD CUSHION CLAMP
GROUND LEAD
(2 LOCATIONS) ALUMEL WASHER
(2 LOCATIONS) (2 LOCATIONS) CHROMEL WASHER ALUMEL NUT NUT
(2 LOCATIONS) CHROMEL NUT FWD
D
(4 LOCATIONS) SCREW
C COVER
Figure 405 (Sheet 2) EEC Wiring Harness W6 Installation
E44645
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73-21-07
ALL ú ú N01A Page 467 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
NUT
FWD BRACKET
NUT SUPPORT TUBE BOLT
W6 HARNESS BOLT
NUT SUPPORT TUBE E BOLT W6 HARNESS NUT TUBE SUPPORT
BOLT G
F W6 HARNESS
Figure 405 (Sheet 3) EEC Wiring Harness W6 Installation
E44647
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