Low Oil-Level Indication (APS 3200)

TASK 49-00-00-810-916-A
Low Oil-Level Indication (APS 3200)

1. Possible Causes

the oil level is not sufficient
internal oil leakage
APU [4005KM]
OIL LEVEL SENSOR (8089KM)
wiring

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ESPM 2052210
ESPM 2053210
ESPM 205321A
AMM 49-00-00-710-005	Self-Test of the ECB
AMM 49-00-00-790-002	Leak Test of the APU
AMM 49-11-11-000-003	Removal of the Power Plant (APU) (APS 3200)
AMM 49-11-11-400-003	Installation of the Power Plant (APU) (APS 3200)
ASM 496102
AMM 49-90-00-600-004	Check Oil Level and Replenish (APS 3200)
AMM 49-93-17-000-001	Removal of the Oil Level Sensor (8089KM) (APS 3200)
AMM 49-93-17-400-001	Installation of the Oil Level Sensor (8089KM) (APS 3200)

3. Fault Confirmation
Subtask 49-00-00-710-280-A ** ON A/C NOT FOR ALL

A. Do the self-test of the ECB (59KD) AMM 49-00-00-710-005.

4. Fault Isolation
Subtask 49-00-00-810-167-B ** ON A/C NOT FOR ALL

A. If the APU Last Leg Report gives the maintenance message:

LOW OIL LEVEL:
Fault Code Number: 048

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 not sufficient :

do the oil servicing AMM 49-90-00-600-004.
calculate the APU oil consumption AMM 49-90-00-600-004

NOTE: If the APU page of the ECAM shows 'Low Oil Level' and there is no oil leakage, Airbus recommends to do oil servicing before 10 APU operating hours.

(a) If there is a sudden increase in the APU oil consumption or if the APU uses too much oil:

carefully examine the APU externally and make sure that you do not find leaks on the oil system components or oil lines.

1 If you find external oil leaks:

correct/replace as necessary.

2 If you do not find external oil leaks:

examine the APU for internal oil leakage AMM 49-00-00-790-002.

a If the fault continues:

replace the APU [4005KM] AMM 49-11-11-000-003 and AMM 49-11-11-400-003.

(b) If the oil level is sufficient:

replace the OIL LEVEL SENSOR (8089KM) AMM 49-93-17-000-001 and AMM 49-93-17-400-001.

1 If the fault continues:

do a check and repair the wiring from the ECB (59KD) AB/H2, J4 to the OIL LEVEL SENSOR (8089KM) P8/1, 2 ASM 496102 ESPM 2052210 ESPM 2053210 ESPM 205321A.

Subtask 49-00-00-710-281-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:34:25 UTC