Loss of the ADR 3 Input Data to the IR 1

TASK 34-14-00-810-823-A
Loss of the ADR 3 Input Data to the IR 1

1. Possible Causes

ADIRU-1 [1FP1]
wiring of the ADR INPUT 1 signal from the ADIRU 1 (1FP1) to the first terminal block
wiring of the ADR INPUT 1 signal from the ADIRU1 (1FP1) to the first terminal block

2. Job Set-up Information
A. Referenced Information

3. Fault Confirmation
Subtask 34-14-00-740-087-A

A. Test
Do the Interface test of the IR (system 1) AMM 34-14-00-740-001.

4. Fault Isolation
Subtask 34-14-00-810-072-B ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ADIRU3 (1FP3)/ADIRU1 (1FP1):

(1) If the fault continues:

do a check and repair the wiring of the ADR INPUT 1 signal from the ADIRU 1 (1FP1) to the first terminal block ASM 341402.

Subtask 34-14-00-810-072-C ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ADIRU3 (1FP3):

(1) If the fault continues:

do a check and repair the wiring of the ADR INPUT 1 signal from the ADIRU1 (1FP1) to the first terminal block ASM 341402.

Subtask 34-14-00-740-088-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:32:44 UTC