A. Do the operational-test of the APU (Ref. AMM TASK 49-00-00-710-008).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-106, 108-149, 211-299, 301-399, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 245
4. Fault Isolation
_______________
A. Maintenance Action
(1) If the APU Last Leg Report gives the maintenance message:
IGNITION UNIT (8030KM) / FUEL CTL UNIT (8022KM):
Fault Code Number: 042
Additionally:
Fault Code Number: 081 or 083
NOTE : FCN 081 or 083 on Class 3 Faults Page
____
NOTE : The APU SHUTDOWNS report gives the maintenance message:
____ NO FLAME - IGNITION UNIT (8030KM) / FUEL CTL UNIT (8022KM) APU Auto Shut Down Fault Code Number: 042
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-002) and (Ref. AMM TASK 49-61-34-400-002).
(2) If the APU Last Leg Report gives the maintenance message:
IGNITION UNIT (8030KM) / FUEL CTL UNIT (8022KM):
Fault Code Number: None
NOTE : The APU SHUTDOWNS report gives the maintenance message:
____ NO FLAME - IGNITION UNIT (8030KM) / FUEL CTL UNIT (8022KM) APU Auto Shut Down Fault Code Number: 042
- remove the obstruction in the air inlet
(a) If the fault continues:
- replace the IGNITER PLUGS (Ref. AMM TASK 49-41-41-000-003) and (Ref. AMM TASK 49-41-41-400-002).
1 If the fault continues:
_
- do a check and repair the wiring from the ECB (59KD) AB/F7, F6 to the IGNITION UNIT (8030KM) P10/1, 2 (Ref. ASM 49-61/02).
a If the fault continues:
_
- replace the IGNITION UNIT (8030KM) (Ref. AMM TASK 49-41-38-000-002) and (Ref. AMM TASK 49-41-38-400-002).
b If the fault continues:
_
- replace the ELECTRICAL LEADS (Ref. AMM TASK 49-41-43-000-002) and (Ref. AMM TASK 49-41-43-400-002).
c If the fault continues:
_
- replace the FUEL FLOW DIVIDER (8024KM) (Ref. AMM TASK 49-32-12-000-002) and (Ref. AMM TASK 49-32-12-400-002).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-106, 108-149, 211-299, 301-399, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 246
Config-2 Aug 01/05 CES e If the fault continues:
d_ If the fault continues:
- replace the PRIMARY FUEL NOZZLES (Ref. AMM TASK 49-31-41-
000-002) and (Ref. AMM TASK 49-31-41-400-002).
_
- replace the FUEL CONTROL UNIT (8022KM) (Ref. AMM TASK 49-32-11-000-002) and (Ref. AMM TASK 49-32-11-400-002).
f If the fault continues:
_
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-002) and (Ref. AMM TASK 49-61-34-400-002).
B. Do the test given in para. 3.
TASK 49-00-00-810-900
APU AUTO SHUT DOWN - NO ACCELERATION (Low Acceleration) (APS 3200)
1. Possible Causes
_______________
- FUEL CONTROL UNIT (8022KM)
- wiring
- FUEL FLOW DIVIDER (8024KM)
- ECB (59KD)
- AUXILIARY POWER UNIT (4005KM)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 49-00-00-710-008 Operational Test of the APU (APS 3200)
AMM 49-11-11-000-003 Removal of the Power Plant (APU) (APS 3200)
AMM 49-11-11-400-003 Installation of the Power Plant (APU) (APS 3200)
AMM 49-31-41-000-002 Removal of the Pilot Fuel Nozzles and Manifold (APS
3200) AMM 49-31-41-400-002 Installation of the Pilot Fuel Nozzles and Manifold
(APS 3200) AMM 49-32-11-000-002 Removal of the Fuel Control Unit (8022KM) (APS 3200) AMM 49-32-11-400-002 Installation of the Fuel Control Unit (8022KM) (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) AMM 49-61-34-000-002 Removal of the Electronic Control Box (ECB) (59KD)
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