R 1_ If the starter shutoff valve handle does not move:
R - use a heat gun to warm up the starter shutoff valve.
R 2_ If the starter shutoff valve remains stuck:
R - replace the starter shutoff valve (Ref. AMM TASK 80-11-20-R 000-003) and (Ref. AMM TASK 80-11-20-400-003).
(b) If freezing conditions are not present: R - operate the starter shutoff valve (Ref. AMM TASK 80-11-00-040-R 045).
R 1_ If the starter shutoff valve handle does not move:
R - replace the starter shutoff valve (Ref. AMM TASK 80-11-20-R 000-003) and (Ref. AMM TASK 80-11-20-400-003).
2 If the fault continues during the subsequent flights:
_
- replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) (Ref. AMM TASK 73-21-60-400-001).
3 If the fault continues during the subsequent flights:
_ - disconnect the harness HJ9 (channel A) from the ECU (4000KS)
and visually examine the connector and receptacle of the R harness HJ9 (channel A) for damaged pins or contamination R (Ref. AMM TASK 73-21-50-210-001).
R a_If damage is found:
- repair or replace as required.
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- replace the harness HJ9 (channel A) (Ref. AMM TASK 73-21-50-000-042) and (Ref. AMM TASK 73-21-50-400-042).
B. Do the test given in Para. 3.A.
(1) No additional maintenance action is required if the fault is not confirmed.
(2) Repeat the fault isolation procedure if the fault continues.
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TASK 80-11-00-810-804
R Failure of the Starter Shutoff Valve - Engine 2 - Channel A
1. Possible Causes
_______________
R - starter shutoff valve
- harness HJ9
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 73-21-50-000-042
AMM 73-21-50-210-001
AMM 73-21-50-400-042
AMM 73-21-60-000-001
AMM 73-21-60-400-001
AMM 73-29-00-710-040
R AMM 80-11-00-040-045
AMM 80-11-20-000-003
AMM 80-11-20-400-003
3. Fault Confirmation
__________________
A. Test
Removal of the HJ9 HarnessVisual Inspection of the Wiring HarnessInstallation of the HJ9 HarnessRemoval of the Electronic Control Unit (ECU)Installation of the Electronic Control Unit (ECU)Operational Test of the FADEC on the ground (with Engine Motoring) Manually Close the Starter Valve after Engine StartRemoval of the Starter Shutoff ValveInstallation of the Starter Shutoff Valve
(1) Do the operational test of the FADEC 2A on the ground (with engine motoring) (Ref. AMM TASK 73-29-00-710-040).
4. Fault Isolation
_______________
R A. This fault is generated if the actual starter shutoff valve position and R the demanded valve position disagree for a set time interval. R
R NOTE : The starter air duct pressure is expected to be greater than 25____
R psi (1.72 bar).
R If the starter air duct pressure is less than 25 psi:
R - do the trouble shooting of the bleed air system (TSM chapter 49
R if the APU was used),
R - check that supplying engine speed was correct if cross bleed
R start was performed (increase engine speed for higher bleed
R pressure).
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ER (1) If the failure message START AIR, SAV is not confirmed:
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R (a) No maintenance action is required.
R (2) If the failure message START AIR, SAV is not confirmed but is
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊 STARTING 起動(13)
