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Loss of the VSV Torque Motor Control through the Channel A on Engine 1 and Channel B on Engine 2
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
73-29-00-810-884 Loss of the VSV Torque Motor Control through the
Channel A on Engine 1
73-29-00-810-887 Loss of the VSV Torque Motor Control 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. Do the operational test of the FADEC 1A 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, HMU (VSV TM), ECU on the channel 1A
and
- J8, HMU (VSV TM), ECU on the channel 2B
(1) Do the trouble shooting procedure (Ref. TASK 73-29-00-810-884).
(2) Do the trouble shooting procedure (Ref. TASK 73-29-00-810-887).
F 『 EEFF : ALL E ∞∞73-29-00∞∞∞∞∞∞∞∞∞∞Page A284
E E May 01/05 ERE
ECES TASK 73-29-00-810-898
F 『
E C F M E
E E
E 56 E
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Loss of the VSV Torque Motor Control through the Channel B on Engine 1 and Channel A on Engine 2
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
73-29-00-810-885 Loss of the VSV Torque Motor Control through the
Channel B on Engine 1
73-29-00-810-886 Loss of the VSV Torque Motor Control through the
Channel A on Engine 2 AMM 73-29-00-710-040 Operational Test of the FADEC on the ground (with Engine Motoring)
3. Fault Confirmation
__________________
A. Do the operational test of the FADEC 1B and 2A 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:
- J8, HMU (VSV TM), ECU on the channel 1B
and
- J7, HMU (VSV TM), ECU on the channel 2A
(1) Do the trouble shooting procedure (Ref. TASK 73-29-00-810-885).
(2) Do the trouble shooting procedure (Ref. TASK 73-29-00-810-886).
F 『 EEFF : ALL E ∞∞73-29-00∞∞∞∞∞∞∞∞∞∞Page A285
E E May 01/05 ERE
ECES TASK 73-29-00-810-899
F 『
E C F M E
E E
E 56 E
E E
Loss of the VSV Torque Motor Control through the Channel B on Engine 1 and Channel B on Engine 2
1. Possible Causes
_______________
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
73-29-00-810-885 Loss of the VSV Torque Motor Control through the
Channel B on Engine 1
73-29-00-810-887 Loss of the VSV Torque Motor Control 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. Do the operational test of the FADEC 1B 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:
- J8, HMU (VSV TM), ECU on the channel 1B
and
- J8, HMU (VSV TM), ECU on the channel 2B
(1) Do the trouble shooting procedure (Ref. TASK 73-29-00-810-885).
(2) Do the trouble shooting procedure (Ref. TASK 73-29-00-810-887).
F 『 EEFF : ALL E ∞∞73-29-00∞∞∞∞∞∞∞∞∞∞Page A286
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