Failure of the Control of the Solenoid of the Fuel Return-Valve through the two Channels on Engine 1

TASK 73-10-00-810-843-A
Failure of the Control of the Solenoid of the Fuel Return-Valve through the two Channels on Engine 1

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 73-10-00-810-809-A	Failure of the Control of the Solenoid of the Engine 1 Fuel Return-Valve, on Channel A
TSM TASK 73-10-00-810-811-A	Failure of the Control of the Solenoid of the Engine 1 Fuel Return-Valve, on Channel B
AMM 73-29-00-710-040	Operational Test of the FADEC on the ground (with Engine Motoring)

3. Fault Confirmation
Subtask 73-10-00-710-130-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the operational test of the FADEC 1A and 1B on the ground (with engine non motoring) AMM 73-29-00-710-040.

4. Fault Isolation
Subtask 73-10-00-810-104-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance messages J7, FRV, ECU and J8, FRV, ECU:

do the following troubleshooting procedures (Ref. TSM TASK 73-10-00-810-809) and (Ref. TSM TASK 73-10-00-810-811).

[Rev.8 from Aug 2018] 2026.04.04 04:35:16 UTC