(b) If the resistance value is < 100 Ohms:
- do a check and repair of the aircraft wiring from the ECB (59KD) AB/H11,G7 to the FUEL CONTROL UNIT (P19) P19/6,7 (Ref. ASM 49-61/02).
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:
OVERTEMPERATURE
FUEL CTRL UNIT(8022KM) / APU FUEL SUPPLY
associated with Fault Code Number (FCN) 79
「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 236
201-210, Config-1 Aug 01/05 CES
- do a check for damage/contamination of electrical connector P19 of the FUEL CONTROL UNIT (8022KM)
(1) If the electrical connector P19 is damaged/contaminated:
- do a repair/cleaning.
(2) If the electrical connector is OK:
- use a multimeter to do a resistance check across pin 6 and pin 7 of the FUEL CONTROL UNIT (8022KM)
(a) If the resistance value is > 100 Ohms:
- replace the FUEL CONTROL UNIT (8022KM) (Ref. AMM TASK 49-32-11-000-003) and (Ref. AMM TASK 49-32-11-400-003).
(b) If the resistance value is < 100 Ohms:
- do a check and repair of the aircraft wiring from the ECB (59KD) AB/H11,G7 to the FUEL CONTROL UNIT (8022KM) P19/6,7 (Ref. ASM 49-61/02).
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).
R **ON A/C 001-049, 101-105, 107-107, 151-199, 201-210,
B. Do the test given in para. 3.
「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 237
201-210, Config-1 Aug 01/05 CES
TASK 49-00-81-810-814
APU AUTO SHUTDOWN - SENSOR FAILURE, EGT1 Sensor Fault and ECB internal Fault (131-9(A))
1. Possible Causes
_______________
- EGT1 SENSOR FAILURE AND ECB INTERNAL FAILURE
- EGT THERMOCOUPLE RAKE 1
- ECB (59KD)
- EGT THERMOCOUPLE RAKE (8057KM1)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 49-00-00-860-008 APU Start by External Power (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)) AMM 49-72-15-000-002 Removal of the Thermocouples (8057KM) (131-9(A)) AMM 49-72-15-400-003 Installation of the Thermocouples (8057KM) (131-9(A))
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
EGT1 SENSOR FAILURE AND ECB INTERNAL FAILURE
(4) Start the APU and apply Bleed Air for 20 seconds, minimum (Ref. AMM TASK 49-00-00-860-008).
「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 238
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 an APU auto shutdown occurs during the APU operation and the APU SHUTDOWN report gives the maintenance message:
SENSOR FAIL
EGT TCPLE RAKE 1 + ECB (59KD)
associated with the Fault Code Number (FCN) 36
- replace the EGT THERMOCOUPLE RAKE 1 ((Ref. AMM TASK 49-72-15-000-002) and (Ref. AMM TASK 49-72-15-400-003)) and 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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