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 Loss of the T25 Sensor Signal through the two Channels on Engine 2
 1. Possible Causes

_______________

 2. Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
73-20-00-810-854 Loss of the T25 Sensor Signal through the Channel A on Engine 2 73-20-00-810-856 Loss of the T25 Sensor Signal through the Channel B on Engine 2 AMM 73-29-00-710-040 Operational Test of the FADEC on the ground (with Engine Motoring)
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the FADEC 2A and 2B on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance messages T25 SNSR, J11, ECU and T25 SNSR, J12, ECU:
 - do the following troubleshooting procedures (Ref. TASK 73-20-00-810-854) and (Ref. TASK 73-20-00-810-856).
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 TASK 73-20-00-810-927
 Failure of the Control of the Solenoid 1 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 -------------------------------------------------------------------------------
73-20-00-810-905 Failure of the Control of the Solenoid 1 of the Fuel Return Valve on Channel A, Engine 1 73-20-00-810-907 Failure of the Control of the Solenoid 1 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
__________________
 A. Test
 (1) Do the operational test of the FADEC 1A and 1B on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance messages J7, FRV (SOL 1), ECU and J8, FRV (SOL 1), ECU:
 - do the following troubleshooting procedures (Ref. TASK 73-20-00-810-905) and (Ref. TASK 73-20-00-810-907).
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 Failure of the Control of the Solenoid 1 of the Fuel Return Valve through the two Channels on Engine 2
 1. Possible Causes

_______________

 2. Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
73-20-00-810-906 Failure of the Control of the Solenoid 1 of the Fuel Return Valve on Channel A, Engine 2 73-20-00-810-908 Failure of the Control of the Solenoid 1 of the Fuel Return Valve on Channel B, Engine 2 AMM 73-29-00-710-040 Operational Test of the FADEC on the ground (with Engine Motoring)
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the FADEC 2A and 2B on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
 4. Fault Isolation
_______________
 A. If the test gives the maintenance messages J7, FRV (SOL 1), ECU and J8, FRV (SOL 1), ECU:
 - do the following troubleshooting procedures (Ref. TASK 73-20-00-810-906) and (Ref. TASK 73-20-00-810-908).
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ECES R **ON A/C 106-149, 155-199, 208-299, 301-399, 401-499,

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