(9)  
AMM 32-09-02/201, Air/Ground Relays

 (10)
 AMM 34-61-02/401, Control display Unit

 (11)
 AMM 45-10-00/501, Central Maintenance Computer (CMC)Access

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

Preconditions
 S 865-257
 (1)  
These conditions are necessary for this task:

 (a)  
Fuel Jettison System serviceable.

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

 (c)  
Electrical Power On (AMM 24-22-00/201).

 (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 45-10-00/501).Prepare for the Test
 S 865-069
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 865-110

 (2)  
Make sure these circuit breakers are closed:

 (a)  
On the main power distribution panel, P6:
 1) 6C17, FUEL JTSN CONT B
 2) 6C18, JTSN NOZZLE VLV CONT R
 3) 6D17, FUEL JTSN CONT A
 4) 6D18, JTSN NOZZLE VLV CONT L

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 ALL  ú ú 01 Page 509 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 5) 6E17, CTR R & MAIN 2 JTSN VLV
 6) 6F5, FUEL SYS MGMT CARD A
 7) 6F6, FUEL SYS MGMT CH1
 8) 6F7, FUEL SYS MGMT CARD B
 9) 6F8, FUEL SYS MGMT CH2
 10) 6F17, CTR L & MAIN 3 JTSN VLV

 (b)  
On the overhead circuit breaker panel, P7:
 1) 7H21, FUEL XFR VLV - MN 1
 2) 7H24, FUEL XFR VLV - MN 4

 (c)  
On the DC power distribution panel, P180:
 1) 180E2, FUEL OVRD/JTSN PMP CONT CTR L
 2) 180E3, FUEL OVRD/JTSN PMP CONT FWD 2&3
 3) 180E18, FUEL OVRD/JTSN PMP CONT AFT 2&3
 4) 180H17, FUEL SYS EICAS INTFC CONT
 5) 180H18, FUEL OVRD/JTSN PMP CONT CTR R

 (d)  
On the left power distribution center, P414:
 1) 414C5, FUEL OVRD/JTSN PUMP FWD 3
 2) 414C2, FUEL OVRD/JTSN PUMP FWD 2
 3) 414D2, OVRD/JTSN PUMP CTR-L

 (e)  
On the right power distribution center, P415:
 1) 415A38, FUEL OVRD/JTSN PUMP AFT 2
 2) 415B38, FUEL OVRD/JTSN PUMP AFT 3
 3) 415M32, OVRD/JTSN PUMP CTR-R

 S 865-120
 (3)  Make sure the airplane is in the ground mode (the airplane is not held up by jacks and targets are not installed).
 S 865-170
 WARNING: MAKE SURE THE WHITE ON INDICATION LIGHT IN EACH JETTISON
_______ NOZZLE VALVE SWITCH DOES NOT SHOW. A WHITE ON INDICATION LIGHT SHOWS THAT THE NOZZLE VALVES ARE OPEN. IF THE FUEL JETTISON NOZZLE VALVES ARE OPEN, FUEL CAN FLOW FROM THE WING TIPS AT THE JETTISON NOZZLES. A FUEL LEAK CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 (4)  Make sure the FUEL JETTISON L-NOZZLE and NOZZLE-R switches on the fuel jettison module (P5 pilots' overhead panel) are closed (the white ON indication light in each switch does not show).
 S 865-168
 WARNING: MAKE SURE THESE CIRCUIT BREAKERS ARE OPEN AND DO-NOT-CLOSE TAGS
_______ ARE ATTACHED. FAILURE TO OPEN THESE CIRCUIT BREAKERS COULD CAUSE FUEL LEAKAGE. A FUEL LEAK CAN CAUSE A DANGEROUS CONDITION FOR EQUIPMENT AND PERSONS.
 (5)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
On the main power distribution panel, P6:
 1) 6C18, JTSN NOZZLE VLV CONT R

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 28-31-00
 ALL  ú ú 01 Page 510 ú Feb 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
　
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