(2)  
Access Panel
 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

 E.  
Prepare to Remove the Fuel Flow Transmitter

 S 864-002-N00
 (1)  Make sure the applicable FUEL CONTROL switch is in the CUTOFF position.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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
4. FUEL FLOW TRANSMITTER, M7192
SEE B
MAIN FUEL HOSE FOR SUPPLY (REF) FWD 
MAIN GEARBOX (REF) 
A 
Fuel Flow Transmitter Installation Figure 401 (Sheet 1) 

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
26. HPC CASE 24. BRACKET
23. HPC CASE BRACKET
BRACKET 22. BOLT
2
(2 LOCATIONS)
1  25. PLATE
1. TRANSFER  2. PACKING  4. FUEL FLOW  2. PACKING  5. ADAPTER FOR FUEL FLOW 
FUEL  TUBE  3. GASKET  M7192 TRANSMITTER,  3. GASKET  TRANSMITTER 
DISTRIBUTION 
VALVE 

3
27. BRACKET
9. FUEL FLOW TRANSMITTER
7. WASHER  6. BOLT
8. ELECTRICAL ADAPTER
(4 LOCATIONS)  (4 LOCATIONS)
CONNECTOR, 7. WASHER
10. BOLT  DM7192 (4 LOCATIONS)(4 LOCATIONS) 11. NUT
11. NUT
12. CLAMP
21. BRACKET
20. CLAMP
13.
 BOLT

14.
 BOLT

(2 LOCATIONS) 4
15. CLAMP
28. BRACKET
16.
 CLAMP

17.
 BOLT

1 ON ENGINES WITH TWO SEPARATE BRACKETS
WHICH SUPPORT THE ADAPTER FOR THE FUEL17. BOLT FLOW TRANSMITTER
18. CLAMP
2 ON ENGINES WITH ONE BRACKET WHICH
SUPPORTS THE ADAPTER FOR THE FUEL19. CLAMP FLOW TRANSMITTER
11. NUT
3 ENGINES PRE-PW-SB 73-140
4 ENGINES POST-PW-SB 73-140 OR 73-146
Fuel Flow Transmitter Installation Figure 401 (Sheet 2)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 864-003-N00
 WARNING: FAILURE TO OPEN APPLICABLE ENGINE IGNITION CIRCUIT BREAKERS
_______ PRIOR TO OPENING ENGINE FUEL CONT VALVE CIRCUIT BREAKER WILL RESULT IN AUTOMATIC FIRING OF IGNITER PLUGS IF/WHEN FLAPS ARE OUT OF ZERO DETENT, NACELLE ANTI-ICE IS ON, CON IGNITION SWITCH IS SET TO "ON", OR ENGINE START SWITCH IS PULLED TO "ON". WITH UNBURNED FUEL IN COMBUSTION CHAMBER, INTERNAL ENGINE OR TAILPIPE FIRE MAY RESULT CAUSING INJURY TO PERSONNEL OR ENGINE DAMAGE.
 (2)  
For the applicable engine, open these circuit breakers and install the DO-NOT-CLOSE tags:

 (a)  
P6 Main Power Distribution Panel
 1) 6F1 IGN 1 ENG 1
 2) 6F2 IGN 1 ENG 2
 3) 6F3 IGN 1 ENG 3
 4) 6F4 IGN 1 ENG 4
 5) 6K19 IGN 2 ENG 1
 6) 6K20 IGN 2 ENG 2
 7) 6K21 IGN 2 ENG 3
 8) 6K22 IGN 2 ENG 4
 9) 6G19 STBY IGN ENG 1
 10) 6G20 STBY IGN ENG 2
 11) 6G21 STBY IGN ENG 3
 12) 6G22 STBY IGN ENG 4

 S 864-004-N00
 (3)  
For the applicable engine, open this circuit breaker and install the DO-NOT-CLOSE tag:

 (a)  
P6 Main Power Distribution Panel
 1) 6L10 FUEL CONT VALVE ENG 1
 2) 6L11 FUEL CONT VALVE ENG 2
　
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