NOTE : The APU SHUTDOWNS report gives the maintenance message:
____
NO ACCELERATION - CONTACTOR (5KA)
APU Auto Shut Down Fault Code Number: 051
- do a check and repair the wiring from the ECB (59KD) to the Main Start Contactor (5KA) (Ref. ASM 49-42/01).
(a) If the fault continues:
- replace the CONTACTOR-MAIN START (5KA) (Ref. AMM TASK 49-42-55-000-001) and (Ref. AMM TASK 49-42-55-400-001).
1 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 49-00-00-810-879
APU AUTO SHUT DOWN - NO ACCELERATION, Back-Up Start-Contactor Fault (APS 3200)
1. Possible Causes
_______________
- CONTACTOR-BACK-UP START (10KA)
- FUSE (6KA)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 49-00-00-710-008 Operational Test of the APU (APS 3200)
AMM 49-42-00-960-001 Replacement of the APU Start Fuse (6KA)
AMM 49-42-55-000-001 Removal of the Start Contactors (5KA,10KA)
AMM 49-42-55-400-001 Installation of the Start Contactors (5KA,10KA)
ASM 49-42/01
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:
CURRENT LIMITER (6KA) / CONTACTOR (10KA):
Fault Code Number: 051
Additionally:
Fault Code Number: 126
NOTE : The APU SHUTDOWNS report gives the maintenance message:
____ NO ACCELERATION - CURRENT LIMITER (6KA) / CONTACTOR (10KA) APU Auto Shut Down Fault Code Number: 051
- do a check for 28VDC at the BACK-UP START CONTACTOR (10KA) A/D (Ref. ASM 49-42/01).
(1) If the power supply is not OK:
- do a check and replace the FUSE (6KA) (Ref. AMM TASK 49-42-00-960-001).
(a) If the fault continues:
- do a check and repair the wiring from the FUSE (6KA) to the BACK-UP START CONTACTOR (10KA) A/D (Ref. ASM 49-42/01).
「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 203
Config-2 Aug 01/05 CES (2) If the power supply is OK:
- replace the CONTACTOR-BACK-UP START (10KA) (Ref. AMM TASK 49-42-55-000-001) and (Ref. AMM TASK 49-42-55-400-001).
B. Do the test given in para. 3.
TASK 49-00-00-810-880
APU AUTO SHUT DOWN - SENSOR FAILURE, Oil-Pressure Switch Fault and Low
Oil-Level Condition (APS 3200)
1. Possible Causes
_______________
- OIL PRESSURE SWITCH (8091KM)
- wiring
- ECB (59KD)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 49-00-00-710-005 Self-Test of the ECB (APS 3200) AMM 49-61-34-000-002 Removal of the Electronic Control Box (ECB) (59KD) (APS 3200) AMM 49-61-34-400-002 Installation of the Electronic Control Box (ECB)
(59KD) (APS 3200) AMM 49-90-00-600-004 Check Oil Level and Replenish (APS 3200) AMM 49-94-14-000-002 Removal of the Oil Pressure Switch (8091KM) (APS
3200) AMM 49-94-14-400-002 Installation of the Oil Pressure Switch (8091KM) (APS 3200) ASM 49-61/02
3. Fault Confirmation
__________________
A. Do the self-test of the ECB (Ref. AMM TASK 49-00-00-710-005).
4. Fault Isolation
_______________
A. If the APU Last Leg Report gives the maintenance message:
OIL PRESS SW (8091KM) AND LOW OIL LEVEL
Fault Code Number: 141
Additionally:
Fault Code Number: 043
AND
Fault Code Number: 048
NOTE : The APU SHUTDOWNS report gives the maintenance message:
____ SENSOR FAILURE - OIL PRESS SW (8091KM) AND LOW OIL LEVEL APU Auto Shut Down Fault Code Number: 141
NOTE : Message does not appear in case of self-test of the ECB
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