(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:
ECB INTERNAL FAILURE
(4) Get access to the APU GND SCANNING menu.
4. Fault Isolation
_______________
A. If the GND SCANNING menu gives the maintenance message ECB (59KD) associated with one of the Fault Code Message (FCN) that follow:
20, 53, 75, 181, 182, 233, 234 or 236
- replace the ECB (59KD) (Ref. AMM TASK 49-61-34-000-003) and (Ref. AMM TASK 49-61-34-400-003).
B. Do a check of the APU GND SCANNING menu to verify the fault is not present.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page B210
201-210, Config-1 Aug 01/05 CES
TASK 49-00-81-810-867
Low-Oil Level (131-9(A))
1. Possible Causes
_______________
- OIL LEVEL SHOWS LOW
- the oil level is below the ADD mark
- AUXILIARY POWER UNIT (4005KM)
- LOW OIL LEVEL SWITCH (P8)
- aircraft wiring
- ECB (59KD)
- LOW OIL LEVEL SWITCH (8087KM)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 49-00-00-790-003 Leak Test of the APU (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))
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 49-90-00-600-007 Check and Replenish Oil Level (131-9(A)) AMM 49-93-16-000-003 Removal of Oil Level Switch (8087KM) (131-9(A)) AMM 49-93-16-400-003 Installation of Oil Level Switch (8087KM) (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 LAST LEG/PREVIOUS LEG report.
(3) Push the '>' adjacent to the related CFDS failure message:
- the MCDU menu shows:
OIL LEVEL SHOWS LOW
(4) Get access to the APU GND SCANNING menu.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 101-105, 107-107, 151-199, ∞∞49-00-81∞∞∞∞∞∞∞∞∞∞Page B211
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 GND SCANNING menu gives the maintenance message
LOW OIL LEVEL:
associated with the Fault Code Number (FCN) 99.
- do a visual check on the oil sight glass on the accessory drive gearbox and make sure that the oil level in the APU oil reservoir is sufficient.
(1) If the oil level is below the ADD mark:
NOTE : AI recommends to do an oil servicing at next daily maintenance
____ when a LOW OIL LEVEL message on ECAM APU page comes on. In case of no oil leakage, sufficient oil is available to allow further 10 hours of APU operation.
- do the oil servicing (Ref. AMM TASK 49-90-00-600-007).
- calculate the APU oil consumption.
(a) If the APU oil consumption is more than 93 cm3 (5.67 in.3) per APU operating hour:
- examine the APU for oil leaks on the oil system components or oil lines (Ref. AMM TASK 49-00-00-790-003).
1 If you find oil leaks:
_ - correct/replace as necessary.
a If the fault continues:
_
- replace the AUXILIARY POWER UNIT (4005KM) (Ref. AMM TASK 49-11-11-000-004) and (Ref. AMM TASK 49-11-11-400-004).
(2) If the oil level is above the ADD mark:
- replace the LOW OIL LEVEL SWITCH (P8) (Ref. AMM TASK 49-93-16-000-003) and (Ref. AMM TASK 49-93-16-400-003).
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