Internal Failure of the IR 3 Identified by the RADAR 1

TASK 34-14-00-810-848-A
Internal Failure of the IR 3 Identified by the RADAR 1

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 34-12-34-000-001	Removal of the ADIRU
AMM 34-12-34-400-001	Installation of the ADIRU
AMM 34-41-00-740-002	BITE Test of the Weather Radar

3. Fault Confirmation
Subtask 34-14-00-740-126-A

A. Test
Do the BITE test of the weather radar (system 1) AMM 34-41-00-740-002.

4. Fault Isolation
Subtask 34-14-00-810-097-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message RADAR1 NO DATA FROM ADIRU:

Subtask 34-14-00-810-097-C ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ADIRU3 (1FP3) IR BUS/WXR1 (1SQ1):

Subtask 34-14-00-740-127-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:32:45 UTC