Failure of the IGGS wiring: ACFT Pin Program detected by IGGS Control Unit 1YA

TASK 47-11-00-810-809-A
Failure of the IGGS wiring: ACFT Pin Program detected by IGGS Control Unit 1YA

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 471101
AMM 47-31-34-000-001	Removal of the IGGS Controller Unit
AMM 47-31-34-400-001	Installation of the IGGS Controller Unit
AMM 47-31-34-740-001	BITE Test of the IGGS with Bleed Air

3. Fault Confirmation
Subtask 47-11-00-740-066-A ** ON A/C NOT FOR ALL

A. Do the BITE test of the IGGS without bleed air AMM 47-31-34-740-001.

4. Fault Isolation
Subtask 47-11-00-810-058-A ** ON A/C NOT FOR ALL

A. Procedure
(1) In the harness connector of the IGGS CTL UNIT [1YA] check the continuity between:

(2) Do the test given in para. 3.
(3) If the fault continues:
(a) Replace the IGGS CTL UNIT [1YA] AMM 47-31-34-000-001 and AMM 47-31-34-400-001.

Subtask 47-11-00-740-067-A ** ON A/C NOT FOR ALL

B. Do the test given in para. 3.

NOTE: After the subsequent flight make sure that the fault does not continue.

[Rev.8 from Aug 2018] 2026.04.04 04:34:23 UTC