28-22-00
 ALL  ú ú 10 Page 517 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (2)  
The engine fuel shutoff valves will be referred to as the spar valves in this procedure.

 (3)  
This procedure does not require a specific quantity of fuel.

 B.
References

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

 (2)  
AMM 26-10-00/501, Fire Detection

 (3)  
AMM 27-81-00/201, Leading Edge Flap System

 (4)  
AMM 28-22-16/401, Fuel System Card File

 (5)  
AMM 31-61-00/501, Integrated Display System (IDS)

 (6)  
AMM 32-09-02/201, Air/Ground Relays

 (7)  
AMM 34-61-02/401, Control Display Unit

 (8)  
AMM 45-10-00/501, Central Maintenance Computer (CMC)

 C.
Access

 (1)  
Location Zones
 221 Control Cabin, Left
 222 Control Cabin, Right

 D.
Preconditions

 S 865-494
 (1)  
These conditions are necessary for this task:

 (a)  
Fuel-Feed System serviceable.

 (b)  
A specific fuel quantity is not necessary for this task.

 (c)  
Fire Detection System serviceable (AMM 26-10-00/501).

 (d)  
Fuel System Card File serviceable (AMM 28-22-16/401).

 (e)  
Integrated Display System (IDS) serviceable (AMM 31-61-00/501).

 (f)  
Airplane must be in the ground mode (AMM 32-09-02/201).

 (g)  
CDU installed (AMM 34-61-02/401).

 (h)  
Central Maintenance Computer (CMC) serviceable (AMM 45-10-00/201).

 E.
Prepare for the Test

 S 865-359
 (1)  
Supply the electrical power (AMM 24-22-00/201).

 S 865-134

 (2)
Make sure the airplane is in the ground mode (the airplane is not jacked and the targets are not installed) (AMM 32-09-02/201).

 S 865-114

 (3)  
Make sure all of these switches on the fuel management control module, M154 (pilots' overhead panel, P5) are in the off position:

 (a)  
Boost pumps and override/jettison pumps (the white ON indication light in each switch does not show).

 (b)  
Fuel crossfeed valves (the flowbar indication in each switch does not show).

 S 865-358
 (4)  Make sure all the FUEL CONTROL switches on the control stand are set to the CUTOFF position.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 28-22-00
 ALL  ú ú 07 Page 518 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 865-130
 WARNING:_______ OPEN THE APPLICABLE CIRCUIT BREAKER FOR THE ENGINE IGNITION
 BEFORE YOU OPEN THE CIRCUIT BREAKER FOR THE ENGINE FUEL CONTROL
 VALVE.  AN AUTOMATIC FIRING OF THE IGNITER PLUGS WILL OCCUR
 WHEN:
 - THE FLAPS ARE OUT OF THE ZERO DETENT
 - THE NACELLE ANTI-ICE IS ON
 - THE CON IGNITION SWITCH IS SET TO "ON"
 - OR THE ENGINE START SWITCH IS PULLED TO "ON".
 FUEL THAT IS NOT BURNED IN THE COMBUSTION CHAMBER CAN IGNITE
 AND CAUSE AN INTERNAL ENGINE OR TAILPIPE FIRE.  THIS CAN CAUSE

 INJURIES TO PERSONS OR DAMAGE TO THE ENGINE.
 (5)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P6, Main Power Distribution Panel 1) 6H2, FIRE EXTINGUISHER ENG 1&3 A 2) 6H1, FIRE EXTINGUISHER ENG 1&3 B 3) 6H4, FIRE EXTINGUISHER ENG 2&4 A 4) 6H3, FIRE EXTINGUISHER ENG 2&4 B 5) 6F1, IGN 1 ENG 1 6) 6F2, IGN 1 ENG 2 7) 6F3, IGN 1 ENG 3 8) 6F4, IGN 1 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 13) 6K19, IGN 2 ENG 1 14) 6K20, IGN 2 ENG 2 15) 6K21, IGN 2 ENG 3 16) 6K22, IGN 2 ENG 4

 S 865-137
 WARNING:_______OPEN THE CIRCUIT BREAKERS FOR THE "FUEL CONT VALVE". IF YOU DO NOT OPEN THE CIRCUIT BREAKERS AN INTERNAL ENGINE FIRE OR A HOT START COULD OCCUR.
 (6)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
　
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