SMOKE Indicator Light inoperative

TASK 26-16-00-810-808-A
SMOKE Indicator Light inoperative

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 33-14-00-810-801-A	Failure of One Annunciator Light Only
AMM 26-16-00-710-001	Operational Check of Cargo-Compartment Smoke-Detection by PTT
ASM 261601
AMM 26-17-34-000-001	Removal of the Smoke-Detection Control Unit (SDCU)
AMM 26-17-34-400-001	Installation of the Smoke-Detection Control Unit (SDCU)
AMM 33-14-00-710-001	Operational Test of the Lights

3. Fault Confirmation
Subtask 26-16-00-710-064-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the Operational Test of the Cargo-Compartment Smoke-Detection by PTT AMM 26-16-00-710-001.

4. Fault Isolation
Subtask 26-16-00-810-068-A ** ON A/C NOT FOR ALL

A. If one SMOKE indicator light does not come on during the test:

do the Operational Test of the Annunciator Light Test System in the Cockpit AMM 33-14-00-710-001.

(1) If the fault continues:

(a) If the fault continues: (Ref. TSM TASK 33-14-00-810-801).
(2) If the Annunciator Light Test is OK:

(a) If the fault continues:

do a check and repair the wiring if necessary between the SDCU (10WQ) and the relay board (3LP) ASM 261601

Subtask 26-16-00-710-065-A ** ON A/C NOT FOR ALL

B. Do the test given in para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:27:18 UTC