- aircraft wiring
- ECB (59KD)
- IGNITION UNIT (8030KM)
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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REFERENCE QTY DESIGNATION
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No specific multimeter
B. Referenced Information
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REFERENCE DESIGNATION
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AMM 49-00-00-860-008 APU Start by External Power (131-9(A))
AMM 49-41-38-000-003 Removal of the Ignition Unit (8030KM) (131-9(A))
AMM 49-41-38-400-003 Installation of the Ignition Unit (8030KM) (131-9(A)
AMM 49-61-34-000-003 Removal of the Electronic Control Box (ECB)
(131-9(A)) AMM 49-61-34-400-003 Installation of the Electronic Control Box (ECB) (131-9(A)) ASM 49-61/01
3. Fault Confirmation
__________________
A. Read-out of ECB Trouble-Shooting Data
(1) Put the APU MASTER SW to the ON position.
(2) Get access to the APU SHUTDOWN report.
(3) Push the '>' adjacent to LRU DATA:
- the MCDU menu shows
IGNITION UNIT SHOWS OPEN CIRCUIT
or
IGNITION UNIT SHOWS SHORT CIRCUIT
「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 270
201-210, Config-1 Aug 01/05 CES
(4) Start the APU and apply Bleed Air for 20 seconds, minimum (Ref. AMM TASK 49-00-00-860-008).
4. Fault Isolation
_______________
R **ON A/C 001-049, 101-105, 107-107, 151-154, 201-207,
A. If an APU auto shutdown occurs during the APU operation and the APU SHUTDOWN report gives the maintenance message:
NO FLAME
IGNITION EXCITER P10
associated with the Fault Code Number (FCN) 128
- do a check for damage/contamination of the electrical connector P10 of the IGNITION UNIT (P10).
(1) If the electrical connector P10 is damaged/contaminated:
- do a repair/cleaning.
(2) If the electrical connector P10 is OK:
- use a multimeter to do a resistance check across pin A and pin B of the IGNITION UNIT (P10).
(a) If the resistance value is > 80 Ohms:
- replace the IGNITION UNIT (P10) (Ref. AMM TASK 49-41-38-000-003) and (Ref. AMM TASK 49-41-38-400-003).
(b) If the resistance value is OK:
- do a check and repair of the aircraft wiring from the ECB (59KD) AB/10 to the IGNITION UNIT (P10) P10/B and the IGNITION UNIT (P10) P10/A to GND (Ref. ASM 49-61/01).
1 If the fault continues:
_
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and (Ref. AMM TASK 49-61-34-400-003).
B. If an APU auto shutdown occurs during the APU operation and the APU SHUTDOWN report gives the maintenance message:
NO FLAME
IGNITION EXCITER P10
associated with the Fault Code Number (FCN) 146
- do a check for damage/contamination of the electrical connector P10 of the IGNITION UNIT (P10).
「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 271
201-210, Config-1 Aug 01/05 CES
(1) If the electrical connector P10 is damaged/contaminated:
- do a repair/cleaning.
(2) If the electrical connector P10 is OK:
- use a multimeter to do a resistance check across pin A and pin B and pin B and pin C of the IGNITION UNIT (P10).
(a) If the resistance value is < 10 Ohms:
- replace the IGNITION UNIT (P10) (Ref. AMM TASK 49-41-38-000-003) and (Ref. AMM TASK 49-41-38-400-003).
(b) If the resistance value is in the specified limit:
- do a check and repair of the aircraft wiring from the ECB (59KD) AB/10 to the IGNITION UNIT (P10) P10/B and the IGNITION UNIT (P10) P10/A to GND (Ref. ASM 49-61/01).
1_ If the fault continues:
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and
(Ref. AMM TASK 49-61-34-400-003).
**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 an APU auto shutdown occurs during the APU operation and the APU SHUTDOWN report gives the maintenance message:
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本文链接地址：A320 Trouble Shooting Manual 排故手册 机载辅助动力 2(60)
