Failure of the Steering Selector Valve 7GC (Opened Position)

TASK 32-51-00-810-837-A
Failure of the Steering Selector Valve 7GC (Opened Position)

1. Possible Causes

SEL VALVE/MANIFOLD ASSY [7GC]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 32-46-00-740-002	BITE Test of the BSCU - Ground Scanning
AMM 32-51-00-720-004	Functional Test of the Nose Wheel Steering with the Pedals
AMM 32-51-23-000-001	Removal of the Selector Valve and Manifold-Assembly
AMM 32-51-23-400-001	Installation of the Selector Valve and Manifold-Assembly

3. Fault Confirmation
Subtask 32-51-00-720-055-A ** ON A/C NOT FOR ALL

A. Tests
(1) Do the functional test of the nose wheels steering with the pedals. AMM 32-51-00-720-004
(2) Do the GROUND SCANNING of the BSCU AMM 32-46-00-740-002

4. Fault Isolation
Subtask 32-51-00-810-100-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message STEERING SELECTOR VALVE (7GC):

replace the SEL VALVE/MANIFOLD ASSY [7GC] AMM 32-51-23-000-001 AMM 32-51-23-400-001

Subtask 32-51-00-720-056-A ** ON A/C NOT FOR ALL

B. Do the test given in Para.A.3.

[Rev.8 from Aug 2018] 2026.04.04 04:31:51 UTC