FUEL QUANTITY INDICATOR, M10054 FUEL QUANTITY

TEST SWITCH, S6
MISCELLANEOUS TEST PANEL, M10398 (REF) (EXAMPLE PANEL SHOWN)

Fuel Quantity Indicating System - Component Location
Figure 102 (Sheet 3)

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 28-41-00
 ú  CONFIG  1
 ú  08A  Page 105
 ú  Sep 20/95 

F23492
A
757 FAULT ISOLATION/MAINT MANUAL

Fuel Quantity Indicating System - Component Location
Figure 102 (Sheet 4)

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 28-41-00
 ú CONFIG ú 08A Page 106 ú Sep 20/95

F23514
A

757
FAULT ISOLATION/MAINT MANUAL

FAULT CODE
01-12,51-62,C1,C4 21-29,71-79,C2,C5 31-42,81-92,C3,C6
C7 C8 D1,D4,D7;D2,D5 D8;D3,D6,D9 E1,E2,E3,E4 A1-A9,B1-B9
FAULT
BIT COMPLETE
LEFT
TANK COMPONENT
CTR
RESET IN PROGRESS
OR WIRING
RIGHT
RESET SUCCESSFUL
LOAD SELECT CONTROL
RESET FAIL
AIRCRAFT DISCRETE INPUT
VERIFY IN PROGRESS
DENSITOMETER OR WIRING
VERIFY NO FAULTS
(L,CTR,R)
VERIFY FAULTS EXIST
VERIFY DISABLED-FUEL DR OPEN/
FLT DECK IND (L,CTR,R,TOT)
PROCESSOR UNIT
FLT DECK FUEL QTY TEST ACTIVE

STATUS
CODE

00 F1 F2 F3 F4 F5 F6 F7/
 F8
STATUS
PROCEDURE: 1. OPERATE PRESS TEST AND HOLD. DISPLAY SHALL READ 88. IF 88 NOT DISPLAYED, THE SELECTED PROCESSOR CHANNEL IS UNPOWERED OR INOPERATIVE.
*
2.
REPEAT STEP 1 WITH DISPLAY CHAN SEL SWITCH IN OPPOSITE POSITION.

3.
PRESS BIT TO DISPLAY FAULT CODE. RECORD FAULT CODE. REPEAT UNTIL DISPLAY BLANKS

4.
PRESS RESET TO CLEAR MEMORY. AFTER F2 OR F3 PRESS RESET TO BLANK DISPLAY, REPEAT IF F3 5.PRESS VERIFY. F5 - NO FURTHER MAINTENANCE INDICATED

F6 - PRESS VERIFY TO BLANK DISPLAY.  REPEAT STEP 3. SEE BOEING FAULT ISOLATION/MAINTENANCE MANUAL, 28-41-00 FOR FQIS REPAIR.

* CHECK FOR POWER BUS OFF

S345T002-361

Fuel Quantity Indicating System - Component Location
Figure 102 (Sheet 5)

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