(a)  
P6 Main Power Distribution Panel

 1)  6F15 ENG 1 PERF SOL PWR A/APU ENG START or ENG 1 PERF SOL PWR A
 2) 6E15 ENG 2 PERF SOL PWR A 3) 6D15 ENG 3 PERF SOL PWR A 4) 6C15 ENG 4 PERF SOL PWR A
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 73-21-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 862-021-N00
 (3)  
To change the command channel from channel B to channel A, open these circuit breakers for the applicable engine and attach DO-NOT-CLOSE tags:

 (a)  
P6 Main Power Distribution Panel
 1) 6F16 ENG 1 PERF SOL PWR B
 2) 6E16 ENG 2 PERF SOL PWR B
 3) 6D16 ENG 3 PERF SOL PWR B
 4) 6C16 ENG 4 PERF SOL PWR B

 S 862-022-N00
 (4)  
Do a cycle of the applicable EEC MAINT ENG 1,2,3, or 4 POWER switch on the EEC MAINT module from NORM to TEST.

 C.
Put the Airplane Back to Its Usual Condition

 S 862-023-N00
 (1)  
After you do a test or maintenance procedure, remove the DO-NOT-CLOSE tags and close these circuit breakers on the applicable engine:

 (a)  
P6 Main Power Distribution Panel
 1) 6F15 ENG 1 PERF SOL PWR A/APU ENG START

 or ENG 1 PERF SOL PWR A
 2) 6F16 ENG 1 PERF SOL PWR B
 3) 6E15 ENG 2 PERF SOL PWR A
 4) 6E16 ENG 2 PERF SOL PWR B
 5) 6D15 ENG 3 PERF SOL PWR A
 6) 6D16 ENG 3 PERF SOL PWR B
 7) 6C15 ENG 4 PERF SOL PWR A
 8) 6C16 ENG 4 PERF SOL PWR B

 S 862-024-N00
 (2)  Set the EEC MAINT ENG 1, 2, 3, or 4 POWER switch on the EEC MAINT module to the NORM position.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
FUEL METERING UNIT - REMOVAL/INSTALLATION
_________________________________________
 1.  General
_______
 A.  This procedure gives the tasks for the removal and installation of the Fuel Metering Unit (FMU) M3108 from the fuel pump. During the removal of the FMU, the fuel pump stays on the engine. For the removal and installation of the FMU and fuel pump as one unit, refer to AMM 73-11-01/401.
 B.  The FMU is attached to the forward side of the fuel pump. The fuel pump is attached on the forward side of the main gearbox at the 5 o'clock position.
 C.  You can get the access to the FMU when you open the left and the right thrust reverser.
 TASK 73-21-01-004-001-N00
 2.  Fuel Metering Unit Removal (Fig. 401)
__________________________
 A.  Standard Tools and Equipment
 (1)  
Container - 5 gallon (20 liter) capacity, applicable to collect the fuel

 B.  
Consumable Materials

 (1)  
D00124 Oil - Slushing, MIL-L-6081, Lubricating, Grade 1010

 (2)  
D00250 Petrolatum White, VV-P-236

 (3)  
D00390 Oil - Engine

 (4)  
G02334 Lockwire - AS3214-02

 C.  
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 71-11-04/201, Fan Cowl Panels

 (3)  
AMM 71-11-06/201, Core Cowl Panels

 (4)  
AMM 78-31-00/201, Thrust Reverser System

 D.  
Access

 (1)  
Location Zone 412 Engine 1 - Main Gearbox Fwd Face 5 o'clock 422 Engine 2 - Main Gearbox Fwd Face 5 o'clock 432 Engine 3 - Main Gearbox Fwd Face 5 o'clock 442 Engine 4 - Main Gearbox Fwd Face 5 o'clock

 (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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