- replace the COMPRESSOR INLET-PRESSURE TRANSDUCER (8048KM) (Ref. AMM TASK 49-51-18-000-001) and (Ref. AMM TASK 49-51-18-400-001).
(1) If the fault continues:
- do a check and repair the wiring from the ECB (59KD) AB/A1, A4, C8, C9 to the COMPRESSOR INLET PRESSURE TRANSDUCER (8048KM) P22/1, 2, 3, 4 (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 given in para. 3.
TASK 49-00-00-810-839
APU Oil-Heater Fault (GTCP 36-300)
1. Possible Causes
_______________
- OIL HEATER P6
- ECB (59KD)
- no 115VAC power supply
- APU AUX CTL RELAY (32KD)
- OIL HEATER (8093KM)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 49-96-51-000-001 Removal of the APU Oil Heater 2KT (GTCP 36-300) AMM 49-96-51-400-001 Installation of the APU Oil Heater 2KT (GTCP 36-300) ASM 49-96/01
3. Fault Confirmation
__________________
A. Not applicable. To confirm the fault, the APU must be cold soaked.
NOTE : NO MAINT ACTION required on A/C Post SB 49-1026 and APU Honeywell
____ 36-300 VSB 49-6702 and ECB P/N 3888394-230300 or ECB P/N 304817-1 or ECB P/N 304817-2 (Ref. SIL 00-028 Rev 27).
4. Fault Isolation
_______________
**ON A/C 001-003, 051-062,
A. If the APU LAST LEG REPORT and/or the APU PREVIOUS LEGS REPORT give the maintenance message:
APU OIL HEATER
- do a check for a ground signal at the APU OIL HEATER P6/2 (Ref. ASM 49-96/01),
- do a check for 115VAC at the APU OIL HEATER P6/1 (Ref. ASM 49-96/01).
NOTE : Make sure that:
____
「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 A212
Config-1 Aug 01/05 CES
- the APU MASTER SW pushbutton switch on the overhead panel 25VU is off,
- the circuit breaker APU OIL HEATER (1KT) on the circuit breaker panel 121VU is closed,
- the 115VAC power supply at the SERVICE BUS 2 (214XP-B) is correct.
(1) If there is a ground signal and 115VAC:
- replace the OIL HEATER P6 (Ref. AMM TASK 49-96-51-000-001) and (Ref. AMM TASK 49-96-51-400-001).
(a) 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).
(2) If there is no ground signal:
- do a check and repair the wiring from the APU OIL HEATER (2KT) P6/2 to the ground (Ref. ASM 49-96/01).
(3) If there is no 115VAC power supply.
- replace the APU AUX CTL RELAY (32KD) (Ref. ASM 49-96/01).
(a) If the fault continues:
- do a check and repair the wiring from the APU OIL HEATER (2KT) P6/1 to the SERVICE BUS 2 (214XP-B) (Ref. ASM 49-96/01).
R **ON A/C 063-099, 401-499,
A. If the APU LAST LEG REPORT and/or the APU PREVIOUS LEGS REPORT give the maintenance message:
APU OIL HEATER (8093KM)
with the LRU TROUBLE SHOOT DATA menu information:
OIL HEATER FAILURE
Fault Code Number: 115
- do a check for a ground signal at the APU OIL HEATER (8093KM) P6/2 (Ref. ASM 49-96/01),
- do a check for 115VAC at the APU OIL HEATER (8093KM) P6/1 (Ref. ASM 49-96/01).
NOTE : Make sure that:
____
- the APU MASTER SW pushbutton switch on the overhead panel 25VU is off,
- the circuit breaker APU OIL HEATER (1KT) on the circuit breaker panel 121VU is closed,
- the 115VAC power supply at the SERVICE BUS 2 (214XP-B) is correct. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 机载辅助动力 1(38)
