Internal Failure of the ADR 2 Identified by the EFCS 2

TASK 34-13-00-810-895-A
Internal Failure of the ADR 2 Identified by the EFCS 2

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 34-13-81-810-824-A	Runaway or Drift of One ADR2 Parameter Identified by the ELACs and the SECs
AMM 27-96-00-740-001	BITE Test of the EFCS (Ground Scanning)
AMM 34-12-34-000-001	Removal of the ADIRU
AMM 34-12-34-400-001	Installation of the ADIRU

3. Fault Confirmation
Subtask 34-13-00-740-163-A

A. Test
Do the BITE test of the EFCS (ground scanning) (system 2) AMM 27-96-00-740-001.

4. Fault Isolation
Subtask 34-13-00-810-144-A

A. If the test gives the maintenance message ADR2:

read the Post Flight Report (PFR) for the maintenance messages related to the link between SEC and ADR.

(1) If the PFR gives the maintenance messages SEC2 OR BUS2 FROM ADR1 and/or SEC3 OR BUS2 FROM ADR3:

(2) If the PFR does not give the above maintenance message:

Subtask 34-13-00-740-164-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:32:27 UTC