Loss of the ADIRU2 Data on the MMR2

TASK 34-36-00-810-858-A
Loss of the ADIRU2 Data on the MMR2

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 34-36-00-740-003	BITE Test of the MMR
ASM 343602
AMM 34-36-31-000-001	Removal of the ILS Receiver
AMM 34-36-31-400-001	Installation of the ILS Receiver

3. Fault Confirmation
Subtask 34-36-00-740-132-A

A. Test
Do the BITE test of the MMR (system 1 and 2) AMM 34-36-00-740-003.

4. Fault Isolation
Subtask 34-36-00-810-122-A

A. If the test gives the maintenance message ADIRU2(1FP2)/MMR2(40RT2):

swap the ADIRU-2 [1FP2] and the ADIRU-1 (1FP1) AMM 34-12-34-000-001 and AMM 34-12-34-400-001.

(1) If the test gives the maintenance message ADIRU1(1FP1)/MMR1(40RT1):

(2) If the fault continues:

swap the MMR-1 [40RT1] and the MMR-2 (40RT2) AMM 34-36-31-000-001 and AMM 34-36-31-400-001.

(a) If the test gives the maintenance message ADIRU1(1FP1)/MMR1(40RT1):

(b) If the fault continues:

do a check and repair the wiring between the ADIRU2 and the MMR2 for pins AB/5E, 6E and AB/8A, 8B ASM 343602.

Subtask 34-36-00-740-133-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:33:01 UTC