Loss of the ADR 2 Input Data to the IR 1

TASK 34-14-00-810-820-A
Loss of the ADR 2 Input Data to the IR 1

1. Possible Causes

ADIRU-1 [1FP1]
wiring of the ADR INPUT 2 signal from the ADIRU 1 (1FP1) to the first terminal block
wiring of the ADR INPUT 2 signal from the ADIRU1 (1FP1) to the first terminal block

2. Job Set-up Information
A. Referenced Information

3. Fault Confirmation
Subtask 34-14-00-740-081-A

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

4. Fault Isolation
Subtask 34-14-00-810-069-B ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ADIRU2 (1FP2)/ADIRU1 (1FP1):

(1) If the fault continues:

do a check and repair the wiring of the ADR INPUT 2 signal from the ADIRU 1 (1FP1) to the first terminal block ASM 341402.

Subtask 34-14-00-810-069-C ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ADIRU2 (1FP2):

(1) If the fault continues:

do a check and repair the wiring of the ADR INPUT 2 signal from the ADIRU1 (1FP1) to the first terminal block ASM 341402.

Subtask 34-14-00-740-082-A

B. Do the test given in Para. 3.

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