4. Fault Isolation
_______________
A. If the bleed indication on the ECAM APU page shows pressure fluctuation:
- switch to the ECAM BLEED page and observe the pack-flow indication needles.
(1) If one of them shows periodic cycling (low frequency, high amplitude):
- replace the respective VALVE-FLOW CTL (8HB) or VALVE-FLOW CTL (11HB) (Ref. AMM TASK 21-51-51-000-001) (Ref. AMM TASK 21-51-51-400-001).
「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 B243
201-210, Config-1 Aug 01/05 CES (2) If the indication is OK:
- do the trouble shooting of APU bleed fluctuation (Ref. TASK 49-00-00-810-847).
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 B244
201-210, Config-1 Aug 01/05 CES
R **ON A/C 001-049, 101-105, 151-199, 201-210,
TASK 49-00-81-810-887
Check IGV Assembly / IGV Actuator (8014KM), Bleed Shut Off fue to high
temperature
1. Possible Causes
_______________
- Bleed Shut Off due to high temperature
- damage/leakage of the fuel supply and return lines of the IGV ACTUATOR (8014KM)
- damage of the IGV ACTUATOR linkage and the IGV assembly and the IGV actuator
- APU (4005KM)
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 49-11-11-000-004 Removal of the Power Plant (APU) (131-9(A))
AMM 49-11-11-400-004 Installation of the Power Plant (APU) (131-9(A))
3. Fault Confirmation
__________________
**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. Read-out of ECB Trouble-Shooting Data
(1) Put the APU MASTER SW to the ON position.
(2) Get access to the LAST LEG report.
(3) Push the '>' adjacent to LRU DATA:
- the MCDU menu shows
Bleed Shut Off due to high temperature
(4) Start the APU and apply Bleed Air for 20 seconds, minimum (Ref. AMM TASK 49-00-00-860-008).
**ON A/C 001-049, 101-105, 151-199, 201-210,
4. Fault Isolation
_______________
**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 LAST LEG report gives the maintenance message:
CHECK IGV ASSEMBLY/IGV ACTUATOR (8014KM)
associated with Fault Code Number (FCN) 90
- do a check for damage/leakage of the fuel supply and return lines of the IGV ACTUATOR (8014KM).
(1) If there is damage/leakage in the fuel supply and return lines:
- do a repair
(2) If the fuel supply and return lines are OK:
- do a check for damage of the IGV ACTUATOR linkage and the IGV assembly and the IGV actuator.
(a) If the IGV ACTUATOR linkage/IGV assembly are damaged and/or do not move freely:
- replace the APU (4005KM) (Ref. AMM TASK 49-11-11-000-004) and (Ref. AMM TASK 49-11-11-400-004).
**ON A/C 001-049, 101-105, 151-199, 201-210,
5. Close-up
________
**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. Do the test given in para. 3.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 001-049, 101-105, 151-199, 201-210, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page B246
Config-1 Aug 01/05R CES
R **ON A/C 001-049, 101-105, 107-107, 151-199, 201-210,
TASK 49-00-81-810-889
Oil Smoke at the APU Exhaust (131-9(A))
1. Possible Causes
_______________
R
- AUXILIARY POWER UNIT (4005KM) R - Air/Oil Seperator Adapter
- flexible seals on the air intake system
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
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