- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-001) and (Ref. AMM TASK 49-61-34-400-001).
R **ON A/C 063-099, 401-499,
A. If an APU shutdown occurs during the APU start sequence and the APU SHUTDOWNS report gives the maintenance message:
NO FLAME - IGNITION UNIT (8030KM)
with the LRU TROUBLE SHOOT DATA menu information:
IGNITION UNIT SHOWS OPEN CIRCUIT
Fault Code Number: 128
or
IGNITION UNIT SHOWS SHORT CIRCUIT
Fault Code Number: 146
- replace the IGNITION UNIT (8030KM) (Ref. AMM TASK 49-41-38-000-001) and (Ref. AMM TASK 49-41-38-400-001).
(1) If the fault continues:
- do a check for an open circuit or short to ground of the wiring from the ECB (59KD) AC/10, 11 to the IGNITION UNIT (8030KM) P10 P10/1, 2 (Ref. ASM 49-61/02).
(2) If the fault continues:
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-001) and (Ref. AMM TASK 49-61-34-400-001).
R **ON A/C 001-003, 051-099, 401-499,
B. Do the test as given in the Para. 3.
TASK 49-00-00-810-808
APU AUTO SHUT DOWN - LOSS OF SPEED, Speed Sensor P26/P27 Fault (GTCP 36-300)
1. Possible Causes
_______________
- SPEED SENSOR 1 P26
- SPEED SENSOR 2 P27
- wiring
- ECB (59KD)
- SPEED SENSOR (8060KM1)
- SPEED SENSOR (8060KM2)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
49-70-00-810-801 Speed Sensor 1 (P26) Defective (GTCP 36-300) 49-70-00-810-802 Speed Sensor 2 (P27) Defective (GTCP 36-300) AMM 49-00-00-710-004 Operational Test of the APU (4005KM) (GTCP 36-300) AMM 49-61-34-000-001 Removal of the Electronic Control Box (ECB) (59KD)
(GTCP 36-300) AMM 49-61-34-400-001 Installation of the Electronic Control Box (ECB) (59KD) (GTCP 36-300) AMM 49-71-13-000-001 Removal of the Speed Sensors (8060KM1) and (8060KM2) (GTCP 36-300) AMM 49-71-13-400-001 Installation of the Speed Sensor (8060KM1) and (8060KM2) (GTCP 36-300) ASM 49-61/02
3. Fault Confirmation
__________________
**ON A/C 001-003, 051-062,
A. Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-004).
NOTE : If this fault has occured, the APU will not start again. If you
____ try to start the APU again, the maintenance message will be START TIME EXCEEDED - STARTER MOTOR 8KA.
R **ON A/C 063-099, 401-499,
A. Do the operational test of the APU (Ref. AMM TASK 49-00-00-710-004).
「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 : 001-003, 051-099, 401-499, ∞∞49-00-00∞∞∞∞∞∞∞∞∞∞Page 221
R **ON A/C 001-003, 051-099, 401-499,
4. Fault Isolation
_______________
**ON A/C 001-003, 051-062,
A. If an APU shutdown occurs during the operational test of the APU and the APU SHUTDOWNS report gives the maintenance message:
START TIME EXCEEDED - STARTER MOTOR 8KA
and the previous APU SHUTDOWNS report gives
LOSS OF SPEED - SPEED SNSRS P26, P27:
- replace the SPEED SENSOR 1 P26 and the SPEED SENSOR 2 P27 (Ref. AMM TASK 49-71-13-000-001) and (Ref. AMM TASK 49-71-13-400-001).
(1) If the fault continues:
- do a check and repair the wiring from the ECB (59KD) AB/A10, A11 to the SPEED SENSOR 1 P26/1, 2 (Ref. ASM 49-61/02).
- do a check and repair the wiring from the ECB (59KD) AB/B5, B6 to the SPEED SENSOR 2 P27/1, 2 (Ref. ASM 49-61/02).
(2) If the fault continues:
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-001) and (Ref. AMM TASK 49-61-34-400-001).
B. Do the test given in para. 3.
NOTE : It is recommended to make an entry in the applicable logbook that
____ you must read the APU CLASS 3 FAULTS after the first following flight. If the APU CLASS 3 FAULTS page gives the maintenance message SPEED SNSR P26 after the first following flight:
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本文链接地址：A320 Trouble Shooting Manual 排故手册 机载辅助动力 1(8)
