Internal Failure of the IR 1 Identified by the EIS 3

TASK 34-14-00-810-808-A
Internal Failure of the IR 1 Identified by the EIS 3

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 31-60-00-740-002	Perform Electronic Instrument System (EIS) Input Test
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 34-14-00-740-061-A ** ON A/C NOT FOR ALL

A. Test
Do the EIS input test (system 3) AMM 31-60-00-740-002.

Subtask 34-14-00-740-061-B ** ON A/C NOT FOR ALL

A. Test
Do the Ground Scanning Test of the DMC (system 3) AMM 31-60-00-740-007.

4. Fault Isolation
Subtask 34-14-00-810-057-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message DMC 3 : NO IRS 1 DATA:

Subtask 34-14-00-810-057-B ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ADIRU1(1FP1)BUSX IR/DMC3(1WT3)

Subtask 34-14-00-740-062-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:32:43 UTC