OBRM failure caused by passive director

TASK 23-73-00-810-940-A
OBRM failure caused by passive director

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 23-73-00-740-005	BITE-Test of the Cabin Intercommunication Data System (CIDS) through the CFDS
AMM 23-73-34-000-001	Removal of the CIDS Director
AMM 23-73-34-400-001	Installation of the CIDS Director

3. Fault Confirmation
Subtask 23-73-00-710-369-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the CIDS Interface and Power-Up Test via the CFDS AMM 23-73-00-740-005.

4. Fault Isolation
Subtask 23-73-00-810-704-A ** ON A/C NOT FOR ALL

A. If the test gives a different maintenance message, do the trouble shooting procedure related to the maintenance message.

Subtask 23-73-00-810-705-A ** ON A/C NOT FOR ALL

B. If the test confirms the fault:

5. Close-up
Subtask 23-73-00-710-370-A ** ON A/C NOT FOR ALL

A. Do the test given in para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:25:59 UTC