Loss of the ADIRU 1 Data to the DMC

TASK 31-63-00-810-991-A
Loss of the ADIRU 1 Data to the DMC

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 31-63-00-810-820-A	Loss of the ADC 1 Output Bus by the DMC 1
TSM TASK 31-63-00-810-836-A	Loss of the ADC 1 Output Bus by the DMC 3
AMM 31-60-00-740-007	GROUND SCANNING Test of the DMC
AMM 34-12-34-000-001	Removal of the ADIRU
AMM 34-12-34-400-001	Installation of the ADIRU

3. Fault Confirmation
Subtask 31-63-00-740-382-A ** ON A/C NOT FOR ALL

A. Test
Do the Ground Scanning Test of the DMC AMM 31-60-00-740-007.

4. Fault Isolation
Subtask 31-63-00-810-244-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ADIRU1(1FP1):

do the fault isolation (Para. 4. A.) of the following procedures (Ref. TSM TASK 31-63-00-810-820) and (Ref. TSM TASK 31-63-00-810-836).

(1) If the fault continues:

5. Close-up
Subtask 31-63-00-740-383-A ** ON A/C NOT FOR ALL

A. Do the test given in Para. 3.A.

[Rev.8 from Aug 2018] 2026.04.04 04:40:10 UTC