- replace the APU INLET PRESSURE TRANSDUCER (8048KM) (Ref. AMM TASK 49-51-21-000-001) and (Ref. AMM TASK 49-51-21-400-001).
(b) If the resistance is > 75 Ohms:
- disconnect the electrical connector P23 of the TOTAL PRESSURE TRANSDUCER (8044KM). Do a resistance check across pin 20 and pin 21 of the electrical connector P2 again.
1 If the resistance is < 75 Ohms:
_
- replace the TOTAL PRESSURE TRANSDUCER (8044KM) (Ref. AMM TASK 49-51-17-000-002) and (Ref. AMM TASK 49-51-17-400-002).
2 If the resistance is > 75 Ohms:
_
- disconnect the electrical connector P24 of the DELTA PRESSURE TRANSDUCER (8043KM).
「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 : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page B274
201-210, Config-1 Aug 01/05 CES Do a resistance check across pin 20 and pin 21 of the electrical connector P2 again.
a If the resistance is < 75 Ohms:
_
- replace the DELTA PRESSURE TRANSDUCER (8043KM) (Ref. AMM TASK 49-51-16-000-002) and (Ref. AMM TASK 49-51-16-400-002).
b If the resistance is > 75 Ohms:
_
- replace APU wiring harness.
(2) If the resistance is > 75 Ohms:
- do a check and repair of the aircraft wiring between ECB (59KD) AB/A1,A4 and electrical connector P2/20,21 (Ref. ASM 49-61/01).
R **ON A/C 001-049, 101-105, 107-107, 151-199, 201-210,
B. Do a check of the APU GND SCANNING menu to verify the fault is not present.
「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 : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page B275
201-210, Config-1 Aug 01/05 CES
AIRBORNE AUXILIARY POWER - GENERAL ((APS 3200)) - FAULT ISOLATION PROCEDURES
____________________________________________________________________________ TASK 49-00-81-810-875 APU AUTO SHUT DOWN - NO FLAME, APU Fuel Supply Failure (APS 3200)
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-22-00-810-801 APU Fuel System - Low Pressure AMM 49-00-00-710-008 Operational Test of the APU (APS 3200)
3. Fault Confirmation
__________________
A. Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-008).
4. Fault Isolation
_______________
A. If the APU Last Leg Report gives the maintenance message:
CHECK APU FUEL SUPPLY:
NOTE : The APU SHUTDOWNS report gives the maintenance message:
____
NO FLAME - CHECK APU FUEL SUPPLY
APU Auto Shut Down Fault Code Number: 042
- do the troubleshooting of the APU Fuel System (Ref. TASK 28-22-00-810-801).
B. Not Applicable
TASK 49-00-81-810-876
APU AUTO SHUT DOWN - NO ACCELERATION, APU Flow Divider (8024KM) (APS 3200)
1. Possible Causes
_______________
- FLOW DIVIDER (8024KM)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 49-00-00-710-008 Operational Test of the APU (APS 3200)
AMM 49-32-12-000-002 Removal of the Flow Divider (8024KM) (APS 3200)
AMM 49-32-12-400-002 Installation of the Flow Divider (8024KM) (APS 3200)
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