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TASK 77-00-00-810-910
TO/GA Inputs Invalid on Engine 1
1. Possible Causes
_______________
- P0 port on the ECU
- PS12 sense line
- LGCIU1 (5GA1)
- EIU-1 (1KS1)
- ECU (4000KS)
- ADIRU 1
- ADIRU 2
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
73-25-00-810-916 Loss of Weight on Wheels Signal on the System 1 AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU) AMM 73-21-60-400-001 Installation of the Electronic Control Unit (ECU)
3. Fault Confirmation
__________________
A. Test
(1) The fault cannot be confirmed by the ground test.
4. Fault Isolation
_______________
A. This failure message will be set if the ECU cannot determine the take-off or go around state due to disagreement on flight/ground input signals.
(1) If the failure message ADC1+ADC2+LGCIU1 is displayed:
- look at the Post Flight Report or the Last Leg Report for failure message EIU, LGCIU (WOW).
(a) If there is this message:
- do the applicable trouble shooting procedure for this message (Ref. TASK 73-25-00-810-916).
1 The fault may be caused by:
_
- a blockage of the P0 port on the ECU,
- a blockage or leakage on the PS12 sense line,
- an LGCIU1 (5GA1) system failure,
- an EIU-1 (1KS1) or an ECU (4000KS) internal failure.
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E 56 E E E (b) If there is not this message:
- look for failure message relative to ADIRU 1 or ADIRU 2 or pitot or static probes.
1 If there is a message:
_
- do the applicable trouble shooting procedure.
2 If there is no message:
_
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
B. No additional maintenance action is required if the fault is not
confirmed.
(1) Repeat the fault isolation procedure if the fault continues.
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TASK 77-00-00-810-911
TO/GA Inputs Invalid on Engine 2
1. Possible Causes
_______________
- P0 port on the ECU
- PS12 sense line
- LGCIU2 (5GA2)
- EIU-2 (1KS2)
- ECU (4000KS)
- ADIRU 1
- ADIRU 2
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
73-25-00-810-917 Loss of Weight on Wheels Signal on the System 2 AMM 73-21-60-000-001 Removal of the Electronic Control Unit (ECU) AMM 73-21-60-400-001 Installation of the Electronic Control Unit (ECU)
3. Fault Confirmation
__________________
A. Test
(1) The fault cannot be confirmed by the ground test.
4. Fault Isolation
_______________
A. This failure message will be set if the ECU cannot determine the take-off or go around state due to disagreement on flight/ground input signals.
(1) If the failure message ADC1+ADC2+LGCIU2 is displayed:
- look at the Post Flight Report or the Last Leg Report for failure message EIU, LGCIU (WOW).
(a) If there is this message:
- do the applicable trouble shooting procedure for this message (Ref. TASK 73-25-00-810-917).
1 The fault may be caused by:
_
- a blockage of the P0 port on the ECU,
- a blockage or leakage on the PS12 sense line,
- an LGCIU2 (5GA2) system failure,
- an EIU-2 (1KS2) or an ECU (4000KS) internal failure.
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