Lighting - All Cabin Lights cannot be dimmed or switched off or dim incorrectly

TASK 33-21-00-810-805-A
Lighting - All Cabin Lights cannot be dimmed or switched off or dim incorrectly

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
ASM 237309
AMM 23-73-12-000-002	Removal of the Forward Attendant Panel
AMM 23-73-12-400-002	Installation of the Forward Attendant Panel
AMM 23-73-13-000-001	Removal of the Aft/Additional Attendant Panel
AMM 23-73-13-000-002	Removal of Additional Attendant Panel
AMM 23-73-13-400-001	Installation of the Aft/Additional Attendant Panel
AMM 23-73-13-400-002	Installation of the Additional Attendant Panel
AMM 23-73-34-000-001	Removal of the CIDS Director
AMM 23-73-34-400-001	Installation of the CIDS Director
AWM 237348
AMM 33-21-00-710-001	Operational Test of the General Illumination

3. Fault Confirmation
Subtask 33-21-00-710-054-A

A. Do the BITE-test of the Cabin Intercommunication Data-System (CIDS) AMM 23-73-00-740-005.

Subtask 33-21-00-710-063-A

B. Do the operational test of the general illumination AMM 33-21-00-710-001.

4. Fault Isolation
Subtask 33-21-00-810-054-A

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

Subtask 33-21-00-810-059-A

B. If there is no CFDS message, but you cannot control all lights correctly:

(1) If the fault continues:

(2) If the fault continues:

(3) If the fault continues:

(4) If the fault continues:

Subtask 33-21-00-710-064-A

C. Do the test as given in the Para. 3.A .

5. Close-up
Subtask 33-21-00-860-054-A

A. Put the aircraft back to its initial configuration.

[Rev.8 from Aug 2018] 2026.04.04 04:31:55 UTC