L/G - Gear Selector Valve or Door Selector Valve Fault

TASK 32-31-00-810-883-A
L/G - Gear Selector Valve or Door Selector Valve Fault

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 32-31-00-810-806-A	L/G Selector Valve Fault
TSM TASK 32-31-00-810-807-A	L/G Doors Selector Valve System Fault

3. Fault Confirmation
Subtask 32-31-00-710-074-A

A. Test
(1) Do a BITE test of the LGCIU-1 [5GA1] or LGCIU-2 [5GA2] identified on the Post Flight Report (PFR):

if the message LGCIU1(2)/VALVES 40GA/41GA is shown, do the fault isolation procedure in Para. 4.A.
if a different message is shown, do the trouble shooting procedure related to the maintenance message.

4. Fault Isolation
Subtask 32-31-00-810-141-A

A. Procedure
(1) Do the fault isolation procedure for the [40GA] (Ref. TSM TASK 32-31-00-810-806).
(a) Do the test in Para. 3.A.:

(2) Do the fault isolation procedure for the [41GA] (Ref. TSM TASK 32-31-00-810-807).
(a) Do the test in Para. 3.A.

[Rev.8 from Aug 2018] 2026.04.04 04:31:26 UTC