Failure of the Control of the Solenoid 2 of the Fuel Return Valve through the two Channels on Engine 1

TASK 73-20-00-810-929-A
Failure of the Control of the Solenoid 2 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 73-20-00-810-909-A	Failure of the Control of the Solenoid 2 of the Fuel Return Valve on Channel A, Engine 1
TSM TASK 73-20-00-810-911-A	Failure of the Control of the Solenoid 2 of the Fuel Return Valve on Channel B, Engine 1
AMM 73-29-00-710-040	Operational Test of the FADEC on the ground (with Engine Motoring)

3. Fault Confirmation
Subtask 73-20-00-710-248-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 motoring) AMM 73-29-00-710-040.

4. Fault Isolation
Subtask 73-20-00-810-199-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance messages J7, FRV (SOL 2), ECU and J8, FRV (SOL 2), ECU:

do the following troubleshooting procedures (Ref. TSM TASK 73-20-00-810-909) and (Ref. TSM TASK 73-20-00-810-911).

[Rev.8 from Aug 2018] 2026.04.04 04:35:27 UTC