A320 Trouble Shooting Manual 排故手册 发动机指示(77)

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____ Engines, and that the A/C is under MMEL 36-11-02 (PRV secured closed), troubleshoot per TSM 36-21-00 first.
 4. Fault Isolation
_______________
 A. Do this procedure:
 NOTE : This procedure is to be used if the crew observes uncommanded fan
____ speed (N1) fluctuations, accelerations, deceleration or there is no response to a throttle command.
 (1) Read the Post Flight Report (PFR) and the Scheduled Maintenance Report (SMR) and/or the Class 3 Report (Ref. AMM TASK 73-21-60-740-007), and check for the following failure messages: J7, HMU(FMVRES), ECU J8, HMU(FMVRES), ECU T12 SNSR, J9, ECU T12 SNSR, J10, ECU N1 SNSR, J9, ECU N1 SNSR, J10, ECU N2 SNSR, J7, ECU N2 SNSR, J8, ECU PS3 SNSR, ECU

 (a) If one or more of these failure messages are present:

 - Do the troubleshooting procedure according to these messages first.

 (b) If none of these failure messages are present:

 - Continue the troubleshooting as follows.

 (2) Replace the T12 Sensor (Ref. AMM TASK 73-21-40-000-001) and (Ref. AMM TASK 73-21-40-400-001).

 (a) Visually examine the J9/J10 harness connectors for damaged pins, contamination (Ref. AMM TASK 73-21-50-210-002):
 1 If damage on a connector is found:
_ - replace or repair as required.
 2 If nothing is found:
_ - no further action is required.
 a If the fault continues during the subsequent flights,
_ continue the troubleshooting as follows.
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 (3) replace the HMU (Ref. AMM TASK 73-21-10-000-002) and (Ref. AMM TASK 73-21-10-400-002).
 (a) Visually examine the J7 and J8 harness connectors for damaged pins, contamination and fuel wetting (Ref. AMM TASK 73-21-50-210-002).
 1 If damage on a connector is found:
_
 - replace or repair as required.
 2 If fuel wetting is found:

_
 - replace defective J7 harness (Ref. AMM TASK 73-21-50-000-040) and (Ref. AMM TASK 73-21-50-400-040) or defective J8 harness (Ref. AMM TASK 73-21-50-000-041) and (Ref. AMM TASK 73-21-50-400-041).
 (4) Replace the N1 Sensor (Ref. AMM TASK 77-11-10-000-002) and (Ref. AMM TASK 77-11-10-400-002) and clean connectors.
 (a) Visually examine the J9/J10 harness connectors for damaged pins, contamination (Ref. AMM TASK 73-21-50-210-002):
 1 If damage on a connector is found:
_
 - replace or repair as required.
 2 If nothing is found:

_
 - no further action is required.
 a If the fault continues during the subsequent flights,

_ continue the troubleshooting as follows.
 (5) Replace the N2 Sensor (Ref. AMM TASK 77-11-20-000-002) and (Ref. AMM TASK 77-11-20-400-002) and clean connectors.
 (a) Visually examine the J7/J8 harness connectors for damaged pins, contamination (Ref. AMM TASK 73-21-50-210-002):
 1 If damage on a connector is found:
_
 - replace or repair as required.
 2 If nothing is found:

_
 - no further action is required.
 a If the fault continues during the subsequent flights,

_ continue the troubleshooting as follows.
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 (6) Replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
 (a) Visually examine the harness connectors for damaged pins, contamination (Ref. AMM TASK 73-21-50-210-002):
 1 If damage on a connector is found:
_
 - replace or repair as required.
 2 If nothing is found:

_
 - no further action is required.
 a If the fault continues during the subsequent flights,

_ continue the troubleshooting as follows.
 (7) Replace the J7 Harness (Ref. AMM TASK 73-21-50-000-040) and (Ref. AMM TASK 73-21-50-400-040).

 (a) If the fault continues during the subsequent flights, continue the troubleshooting as follows.

 (8) Replace the J8 Harness (Ref. AMM TASK 73-21-50-000-041) and (Ref. AMM TASK 73-21-50-400-041).

 (a) If the fault continues during the subsequent flights, continue the troubleshooting as follows.

 (9) Replace the J9 Harness (Ref. AMM TASK 73-21-50-000-042) and (Ref. AMM TASK 73-21-50-400-042).
　
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