Failure of the IDG 2 Oil-Out Temperature Bulb or its Wiring

TASK 24-00-00-810-809-A
Failure of the IDG 2 Oil-Out Temperature Bulb or its Wiring

1. Possible Causes

IDG-ENG 2 [4000XU2]
wiring
GCU-2 [1XU2]
IDG [4000XU]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 24-21-00-612-043	Servicing of the IDG after Oil Chemical Contamination
AMM 24-21-00-612-804	Servicing of the IDG after Oil Chemical Contamination
ASM 242101
AMM 24-21-51-000-040	Removal of the Integrated Drive Generator - IDG 1(2)
AMM 24-21-51-000-803	Removal of the Integrated Drive Generator - IDG 1(2)
AMM 24-21-51-400-040	Installation of the Integrated Drive Generator - IDG 1(2)
AMM 24-21-51-400-803	Installation of the Integrated Drive Generator - IDG 1(2)
AMM 24-22-34-000-001	Removal of the GCU-1(2)
AMM 24-22-34-400-001	Installation of the GCU-1(2)
AMM 24-41-00-740-002	Operational Check of the GAPCU via the CFDS

3. Fault Confirmation
Subtask 24-00-00-740-062-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the BITE test of the GAPCU AMM 24-41-00-740-002.

4. Fault Isolation
Subtask 24-00-00-810-064-D ** ON A/C NOT FOR ALL

CAUTION: AFTER AN IDG OIL LOW PRESSURE (LO PR) OR OVERHEAT (OVHT) CONDITION:

DO NOT CONNECT THE DISCONNECTED IDG1(2) AGAIN, AND
REPLACE IDG1(2).

IF YOU DO NOT OBEY THESE INSTRUCTIONS, YOU WILL INCREASE THE DAMAGE TO IDG1(2) AT THE NEXT ENGINE START.

A. If the BITE test gives the maintenance message IDG2 (E2-4000XU) OIL OUT TEMP SENSE/ GCU2 (1XU2) and the upper ECAM-DU warnings IDG 2 OIL OVHT and GEN 2 FAULT:

Replace IDG-ENG 2 [4000XU2] AMM 24-21-51-000-803 and AMM 24-21-51-400-803
Do the servicing of the IDG 2 external oil-circuit with new oil after oil chemical contamination AMM 24-21-00-612-804.

(1) If the fault continues:

Do a check of the wiring of the oil outlet temperature-sensor ASM 242101 for a high resistance or an open circuit between:
. Pin B/7 of the IDG 2 and pin A/9C of the GCU 2
. Pin B/8 of the IDG 2 and pin A/9D of the GCU 2.

(a) If the wiring is not correct:

Repair or replace as necessary.

(b) If the wiring is correct:

Replace GCU-2 [1XU2] AMM 24-22-34-000-001 and AMM 24-22-34-400-001.

Subtask 24-00-00-810-064-G ** ON A/C NOT FOR ALL

CAUTION: AFTER AN IDG OIL LOW PRESSURE (LO PR) OR OVERHEAT (OVHT) CONDITION:

DO NOT CONNECT THE DISCONNECTED IDG1(2) AGAIN, AND
REPLACE IDG1(2).

IF YOU DO NOT OBEY THESE INSTRUCTIONS, YOU WILL INCREASE THE DAMAGE TO IDG1(2) AT THE NEXT ENGINE START.

A. If the BITE test gives the maintenance message IDG2 (E2-4000XU) OIL OUT TEMP SENSE/ GCU2 (1XU2) and the upper ECAM-DU warnings IDG 2 OIL OVHT and GEN 2 FAULT:

Replace the engine 2 IDG [4000XU] AMM 24-21-51-000-040 and AMM 24-21-51-400-040
Do the servicing of the IDG 2 external oil-circuit with new oil after oil chemical contamination AMM 24-21-00-612-043.

(1) If the fault continues:

Do a check of the wiring of the oil outlet temperature-sensor ASM 242101 for a high resistance or an open circuit between:
. Pin B/7 of the IDG 2 and pin A/9C of the GCU 2
. Pin B/8 of the IDG 2 and pin A/9D of the GCU 2.

(a) If the wiring is not correct:

Repair or replace as necessary.

(b) If the wiring is correct:

Replace the GCU-2 [1XU2] AMM 24-22-34-000-001 and AMM 24-22-34-400-001.

Subtask 24-00-00-740-063-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:26:07 UTC