____
given in the Aircraft Schematic Manual (ASM).
R **ON A/C 106-149, 229-299, 303-399, 401-499,
TASK 31-32-00-810-939
Loss of the BUS from the GAPCU to the CFDIU
1. Possible Causes
_______________
- GAPCU (24XG)
- CFDIU (1TW)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 24-41-34-000-001 Removal of the Ground Auxiliary Power Control Unit (GAPCU) (24XG) AMM 24-41-34-400-001 Installation of the Ground Auxiliary Power Control
Unit (GAPCU) (24XG)
AMM 31-32-00-740-009 Read the AVIONICS STATUS on the MCDU
AMM 31-32-34-000-001 Removal of the CFDIU (1TW)
AMM 31-32-34-400-001 Installation of the CFDIU (1TW)
ASM 31-32/06
3. Fault Confirmation
__________________
A. Read the AVIONICS STATUS on the MCDU (Ref. AMM TASK 31-32-00-740-009).
4. Fault Isolation
_______________
A. If the test gives the maintenance message:
NO GAPCU DATA
(1) Replace the GAPCU (24XG) (Ref. AMM TASK 24-41-34-000-001) and (Ref. AMM TASK 24-41-34-400-001).
(2) If the fault continues:
- replace the CFDIU (1TW) (Ref. AMM TASK 31-32-34-000-001) and (Ref. AMM TASK 31-32-34-400-001).
(3) If the fault continues:
- do a check and repair the wiring between the GAPCU (24XG) connector AA/8F, 7F to the CFDIU (1TW) connector AA/6G, 6F (Ref. ASM 31-32/06).
B. Do the test given in Para. 3.A.
TASK 31-32-00-810-940
Loss of the Output Bus from the CIDS Director 1 to the CFDIU
1. Possible Causes
_______________
- DIR-CIDS, 1 (101RH)
- CFDIU (1TW)
- wiring from the CFDIU (1TW) to the CIDS director 1 (101RH)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 23-73-34-000-001 Removal of the CIDS Director (101RH,102RH)
AMM 23-73-34-400-001 Installation of the CIDS Director (101RH,102RH)
AMM 31-32-00-740-003 Ground Scanning of the CFDIU
AMM 31-32-34-000-001 Removal of the CFDIU (1TW)
AMM 31-32-34-400-001 Installation of the CFDIU (1TW)
ASM 31-32/04
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
**ON A/C 001-049, 051-099, 101-105, 201-299,
49VU COM/CIDS/DIR 1 AND 2/ESS 150RH G02 R **ON A/C 106-149, 151-199, 301-399, 401-499,
49VU COM DIR ESS/1 150RH G01 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299,
121VU COM NAV/CIDS/DIR 1 AND 2/NORM 151RH M05
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-32-00∞∞∞∞∞∞∞∞∞∞Page A299
Aug 01/05 CES -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------**ON A/C 301-399,
121VU COM NAV/CIDS/DIR NORM/1 151RH M06 **ON A/C ALL
B. Do the ground scanning of the CFDIU (Ref. AMM TASK 31-32-00-740-003).
4. Fault Isolation
_______________
A. If the test gives the maintenance message:
NO CIDS 1 DATA
- replace the DIR-CIDS, 1 (101RH) (Ref. AMM TASK 23-73-34-000-001) and (Ref. AMM TASK 23-73-34-400-001).
(1) If the fault continues:
- replace the CFDIU (1TW) (Ref. AMM TASK 31-32-34-000-001) and (Ref. AMM TASK 31-32-34-400-001).
(2) If the fault continues:
- do a check and repair the wiring from the CFDIU (1TW) to the CIDS director 1 (101RH) from pins AA/3F, 3G to pins AA/11A, 11B (Ref. ASM 31-32/04).
B. Do the test given in Para. 3.B.
DIGITAL FLIGHT DATA RECORDING SYSTEM INTERCONNECTION (FDIMU, DFDR , QAR)
________________________________________________________________________ FAULT ISOLATION PROCEDURES
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