R 4. Fault Isolation_______________
R A. Make sure that this(these) circuit breaker(s) is(are) closed:
R -------------------------------------------------------------------------------
R PANEL DESIGNATION IDENT. LOCATION
R -------------------------------------------------------------------------------
R 49VU ABCU &/Y BRK/PRESS IND 61GG C10
R B. Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001)
R - do a check of the status of the circuit breaker (61GG)
R C. If the circuit breaker (61GG) is closed:
R - do a check for 28VDC at pin A/A of the ABCU (65GG) (Ref. ASM 32-43/01)
R (1) If there is 28VDC:
R - replace the ABCU (95GG) (Ref. AMM TASK 32-43-34-000-001) (Ref. AMM
R TASK 32-43-34-400-001)
R (2) If there is no 28VDC:
R - do a check for a ground signal at pin A/B of the ABCU (95GG) (Ref.
R ASM 32-43/01)
R (a) If there is no ground signal:
R - repair the wiring from ABCU (95GG) pin A/B to the ground
R terminal (Ref. ASM 32-43/01)
R (b) If there is a ground signal:
R - replace the ABCU &/Y BRK/PRESS IND (61GG) (Ref. ASM 32-43/01)
R D. If the circuit breaker (61GG) is open:
R - disconnect these five units:
R ABCU (95GG)
R INDICATOR (60GG)
R PRESS XDCR (101GG)
R PRESS XDCR (100GG)
R PRESS XDCR (3068GN)
R - close the circuit breaker (61GG).
R (1) If the circuit breaker (61GG) stays closed:
R - connect the units one by one until the circuit breaker (61GG) trips
R again.
R - replace the related unit:
R for the ABCU (95GG) (Ref. AMM TASK 32-43-34-000-001) (Ref. AMM TASK
R 32-43-34-400-001)
R for the IND-BRK YELLOW PRESS TRIPLE (60GG) (Ref. AMM TASK 32-44-21-R 000-001) (Ref. AMM TASK 32-44-21-400-001)
R for the PRESS XDCR-BRK, YELLOW R (100GG) and for PRESS XDCR-BRK,
R YELLOW L (101GG) (Ref. AMM TASK 32-44-19-000-001) (Ref. AMM TASK
R 32-44-19-400-001)
R for the PRESS XDCR-BRK, Y (3068GN) (Ref. AMM TASK 29-32-11-000-001)
R (Ref. AMM TASK 29-32-11-400-001)
「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 : 401-499, ∞∞32-43-00∞∞∞∞∞∞∞∞∞∞Page 243
Aug 01/05 CES
R - connect all the units
R (2) If the circuit breaker (61GG) trips again:
R - do a check for a short to ground at wiring between the circuit
R breaker(61GG) and the five units (Ref. ASM 32-43/01) (Ref. ASM 32-
R 44/01) (Ref. ASM 32-45/01)
R (a) If there is a short to ground:
R - repair the related wiring
R (b) If there is no short to ground:
R - replace the ABCU &/Y BRK/PRESS IND (61GG) (Ref. ASM 32-43/01)
R E. After the subsequent flight, make sure that the fault does not continue.
R TASK 32-43-00-810-833
R Failure of the ABCU
R 1. Possible Causes
_______________
R - ABCU (95GG)
R - PRESS XDCR-BRK, YELLOW L (101GG)
R - PRESS XDCR-BRK, YELLOW R (100GG)
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R AMM 32-43-34-000-001 Removal of the Alternate Braking Control Unit (ABCU)
R (95GG)
R AMM 32-43-34-400-001 Installation of the Alternate Braking Control Unit
R (ABCU) (95GG)
R AMM 32-44-19-000-001 Removal of the Pressure Transducer 100GG(101GG)
R AMM 32-44-19-400-001 Installation of the Pressure Transducer 100GG(101GG)
R AMM 32-46-00-740-001 BITE Test of the BSCU
R 3. Fault Confirmation
__________________
R A. Do the BITE test of the BSCU. (Ref. AMM TASK 32-46-00-740-001)
R 4. Fault Isolation
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