NOTE: The bonding resistance must not be more than 0.004 ohm.
____
(b) Any bonding jumpers attached to fuel tubes, that were loosened.
NOTE: The bonding resistance must not be more than 0.010 ohm.
____
S 414-032
(18)
Install the fuel tank access doors (AMM 28-11-02/401).
(19)
Install the motor/impeller unit (AMM 28-22-03/401).
(20)
Install boost pump access doors, if removed.
S 434-033
S 414-034
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
FUEL SYSTEM MANAGEMENT CARD - REMOVAL/INSTALLATION
__________________________________________________
1. General
_______
A. This procedure contains instructions to remove and install the fuel system management cards A5 (FSMC A) and A10 (FSMC B), found in the fuel system card file. Access to the fuel system card file is through the left crawlway, forward of the main equipment center.
TASK 28-22-13-004-001
2. Fuel System Management Card Removal (Fig. 401)
___________________________________
A. References
(1)
AMM 20-11-22/401, E/E Rack-Mounted Module
(2)
AMM 20-41-02/201, Electrostatic Discharge Sensitive Devices
(3)
AIPC 28-15-60, Fig. 1
(4)
SSM 28-22-05
(5)
WDM 28-22-41
B.
Access
(1)
Location Zone 115 Area Between Nose Gear Well and Fuselage, Left
C.
Procedure
S 864-010
(1)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
On the main power distribution panel, P6: 1) 6F05, FUEL SYS MGMT CARD A 2) 6F07, FUEL SYS MGMT CARD B
S 914-011
CAUTION: DO NOT TOUCH THE FSMC BEFORE YOU DO THE PROCEDURE FOR DEVICES
_______ THAT ARE SENSITIVE TO ELECTROSTATIC DISCHARGE. ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE FSMC.
(2)
Do the procedure for devices that are sensitive to electrostatic discharge (AMM 20-41-02/201).
S 024-008
(3)
Remove the applicable FSMC A or FSMC B from the fuel system card file (AMM 20-11-22/401).
TASK 28-22-13-404-004
3. Fuel System Management Card Installation (Fig. 401)
________________________________________
A. References
(1)
AMM 20-11-22/401, E/E Rack-Mounted Module
(2)
AMM 20-41-02/201, Electrostatic Discharge Sensitive Devices
(3)
AMM 28-22-13/501, Fuel System Management Card
(4)
AIPC 28-15-60, Fig. 1
(5)
SSM 28-22-05
(6)
WDM 28-22-41
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
FUEL SYSTEM CARD FILE
ELECTROSTATIC SEE A GROUND JACK
FSMC B (LOCATION A10)
FSMC A (LOCATION A5)
FUEL SYSTEM CARD FILE
A
Fuel System Management CardFigure 401
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
B. Access
(1)
Location Zone 115 Area Between Nose Gear Well and Fuselage, Left
C.
Procedure
S 914-012
CAUTION: DO NOT TOUCH THE FSMC BEFORE YOU DO THE PROCEDURE FOR DEVICES
_______ THAT ARE SENSITIVE TO ELECTROSTATIC DISCHARGE. ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE FSMC.
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