(2) Get access to the APU LAST LEG/PREVIOUS LEG report.
(3) Push the '>' adjacent to the related CFDS failure message:
- the MCDU menu shows:
OIL HEATER FAILURE
(4) Fault Confirmation
(a) Not applicable. To confirm the fault, the APU must be cold soaked.
「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 : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page B221
201-210, Config-1 Aug 01/05 CES
4. Fault Isolation
_______________
R **ON A/C 001-049, 101-105, 107-107, 151-154, 201-207,
A. If the APU LAST LEG/PREVIOUS LEG menu gives the maintenance message: APU OIL HEATER P28 associated with Fault Code Number (FCN) 115
- do a check for damage/contamination of electrical connector P28 of the APU OIL HEATER (P28).
(1) If the electriacl connector P28 is damaged/contaminated:
- do a repair/cleaning.
(2) If the electrical connector is OK:
- use a multimeter to do a resistance check across pin 1 and pin 3 of the APU OIL HEATER (P28).
(a) If the resistance value is not between 30 Ohms and 70 Ohms:
- replace the APU OIL HEATER (P28) (Ref. AMM TASK 49-96-51-000-002) and (Ref. AMM TASK 49-96-51-400-002).
(b) If the resistance value is between 30 Ohms and 70 Ohms:
- replace the APU AUX CTL RELAY (32KD). 1 If the fault continues:
_
- do a check and repair of the aircraft wiring from the APU OIL HEATER (P28) P28/2 to the SERVICE BUS 2 (214XP-B) and the APU OIL HEATER (P28) P28/1 to GND (Ref. ASM 49-96/01).
a If the fault continues:
_
- do the trouble shooting of the SERVICE BUS 2 (214XP-B) (Ref. TASK 24-42-00-810-802).
**ON A/C 001-049, 101-105, 151-199, 201-210,
Post SB 49-1062 For A/C 001-049,101-105,151-154,201-207,
A. If the APU LAST LEG/PREVIOUS LEG menu gives the maintenance message: APU OIL HEATER (8093KM) associated with Fault Code Number (FCN) 115
- do a check for damage/contamination of electrical connector P28 of the APU OIL HEATER (8093KM).
「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 : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page B222
201-210, Config-1 Aug 01/05 CES
(1) If the electriacl connector P28 is damaged/contaminated:
- do a repair/cleaning.
(2) If the electrical connector is OK:
- use a multimeter to do a resistance check across pin 1 and pin 3 of the APU OIL HEATER (8093KM).
(a) If the resistance value is not between 30 Ohms and 70 Ohms:
- replace the APU OIL HEATER (8093KM) (Ref. AMM TASK 49-96-51-000-002) and (Ref. AMM TASK 49-96-51-400-002).
(b) If the resistance value is between 30 Ohms and 70 Ohms:
- replace the APU AUX CTL RELAY (32KD).
1_ If the fault continues:
- do a check and repair of the aircraft wiring from
the APU OIL HEATER (8093KM) P28/2 to the SERVICE BUS 2
(214XP-B)
and
the APU OIL HEATER (8093KM) P28/1 to GND
(Ref. ASM 49-96/01).
a If the fault continues:
_
- do the trouble shooting of the SERVICE BUS 2 (214XP-B) (Ref. TASK 24-42-00-810-802).
「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, 151-199, 201-210, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page B223
Config-1 Aug 01/05R
CES R **ON A/C 001-049, 101-105, 107-107, 151-199, 201-210,
TASK 49-00-81-810-871
Surge Control Valve (P18) Fault (131-9(A))
1. Possible Causes
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 2(118)
