Wrong Inhibit Sign From Cargo Door Yellow System

TASK 27-51-00-810-841-A
Wrong Inhibit Sign From Cargo Door Yellow System

1. Possible Causes

RELAY-SCCB PWR SPLY 3811GX
TIME RELAY 3816GX

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ASM 292401
AMM 31-32-00-860-006	Procedure to Get Access to the SYSTEM REPORT/TEST F/CTL Page

3. Fault Confirmation
Subtask 27-51-00-710-072-A

A. Test
(1) Get access to the SYSTEM REPORT/TEST F/CTL page AMM 31-32-00-860-006.
(2) Get access to the SFCC-2 flap discrete i/p status page:

NOTE: The cargo door signal status is shown as follows:

sgoi: 0 = cargo door closed
sgoi: 1 = cargo door open

(3) Make sure that the cargo doors are closed.

4. Fault Isolation
Subtask 27-51-00-810-093-A

A. Procedure
(1) If the SFCC-2 flap dicrete i/p status page shows sgoi: 1:
(a) Do a check for 28VDC at the RELAY-SCCB PWR SPLY 3811GX connector pin X1 ASM 292401.
(b) If there is no 28VDC replace the RELAY-SCCB PWR SPLY 3811GX.
(c) If there is 28VDC replace the TIME RELAY 3816GX (Ref. ASM 2924/01).
(2) Do the test in para 3A. and make sure that the cargo door indications are correct.
(3) Get access to the SFCC-2 system status flap, and make sure that the message 'inhibit signal from cargo yellow door system' is not shown.

[Rev.8 from Aug 2018] 2026.04.04 04:27:39 UTC