L/G Failure Of The L/G Safety Valve Power Interrupt Test

TASK 32-31-00-810-849-A
L/G Failure Of The L/G Safety Valve Power Interrupt Test

1. Possible Causes

RELAY-GND SERVICE BUS CHG OVER [53GA]
RELAY-HYDRAULIC CONTROL (62GA)
Diode (1VD)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
ESPM 204650
ASM 323105
ASM 323107
AMM 32-33-00-720-001	Functional Check of Free-Fall Extension

3. Fault Confirmation
Subtask 32-31-00-710-066-A

A. Test
(1) Examine the ECAM for an LGCIU 1 fault warning.

4. Fault Isolation
Subtask 32-31-00-810-107-B

A. Procedure
(1) If there is an LGCIU 1 fault warning:
(a) Replace the RELAY-GND SERVICE BUS CHG OVER [53GA] , ESPM 204650 and ASM 323105.
(b) Do the L/G safety valve power interrupt test AMM 32-33-00-720-001.
(2) If there is no LGCIU 1 fault warning:
(a) Do a check of the L/G safety valve power interrupt circuit to include the components that follow:

RELAY-HYDRAULIC CONTROL (62GA)
Diode (1VD)
ASM 323107.

(b) Repair/correct defects found.
(c) Do the L/G safety valve power interrupt test AMM 32-33-00-720-001.

[Rev.8 from Aug 2018] 2026.04.04 04:31:23 UTC