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发表于 2009-6-23 21:11:44
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来自： 中国上海
TASK 21-61-00-810-816
Pack 1 Turbine Bypass Valve Fault
1. Possible Causes
- VALVE-TURBINE BYPASS (10HH)
- wiring
2. Job Set-up Information
A. Referenced Information
REFERENCE DESIGNATION
AMM 21-61-00-710-001 Operational Test of the Pack Temperature-Control System
AMM 21-61-53-000-001 Removal of the Bypass Valve 10HH (30HH)
AMM 21-61-53-400-001 Installation of the Bypass Valve 10HH (30HH)
ASM 21-61/04
3. Fault Confirmation
** ON A/C 001-049, 051-099, 101-149, 151-199, 201-233, 236-238, 301-304
A. Do the operational test of the pack temperature-control system AMM TASK 21-61-00-710-001 .
NOTE: If a fault is detected, the PC gives a fault code for shop maintenance in addition to the related CFDS message(s) (refer to TSM chapter 21-63-00, page block 301).
** ON A/C 234-235, 239-249, 251-299, 305-399, 401-499, 501-509, 511-515, 517-599
A. Do the operational test of the pack temperature-control system AMM TASK 21-61-00-710-001 .
** ON A/C ALL
4. Fault Isolation
** ON A/C 001-049, 051-099, 101-149, 151-199, 201-233, 236-238, 301-304
A. If the test gives the maintenance message TEST OK, but the POST FLIGHT REPORT and/or the PREVIOUS LEG REPORT gives the maintenance message P1 BYPASS VALVE:
- no further maintenance action is necessary.
NOTE: If it is reported that a bypass valve fault has ocurred several times in flight:
- replace the VALVE-TURBINE BYPASS (10HH)
AMM TASK 21-61-53-000-001 and AMM TASK 21-61-53-400-001 .
** ON A/C 234-235, 239-249, 251-299, 305-399, 401-499, 501-509, 511-515, 517-599
A. If the test gives the maintenance message TEST OK, but the POST FLIGHT REPORT and/or the PREVIOUS LEG REPORT gives the maintenance message P1 BY PASS VALVE(10HH):
- no further maintenance action is necessary.
NOTE: If it is reported that a bypass valve fault has ocurred several times in flight:
- replace the VALVE-TURBINE BYPASS (10HH)
AMM TASK 21-61-53-000-001 and AMM TASK 21-61-53-400-001 .
** ON A/C 001-003, 051-054
B. If the test gives the maintenance message P1 BYPASS VALVE:
- replace the VALVE-TURBINE BYPASS (10HH)
AMM TASK 21-61-53-000-001 and AMM TASK 21-61-53-400-001 .
(1) If the fault continues:
- do a check and repair the wiring
ASM 21-61/04 from:
- the VALVE (10HH) to the PC 1 (7HH) and,
- the VALVE (10HH) to ground.
** ON A/C 004-049, 055-099, 101-149, 151-199, 201-233, 236-238, 301-304
B. If the test gives the maintenance message P1 BYPASS VALVE:
- replace the VALVE-TURBINE BYPASS (10HH)
AMM TASK 21-61-53-000-001 and AMM TASK 21-61-53-400-001 .
(1) If the fault continues:
- do a check and repair the wiring
ASM 21-61/04 from:
- the VALVE (10HH) to the PC 1 (7HH) and,
- the VALVE (10HH) to ground.
** ON A/C 234-235, 239-249, 251-299, 305-399, 401-499, 501-509, 511-515, 517-599
B. If the test gives the maintenance message P1 BY PASS VALVE(10HH):
- replace the VALVE-TURBINE BYPASS (10HH)
AMM TASK 21-61-53-000-001 and AMM TASK 21-61-53-400-001 .
(1) If the fault continues:
- do a check and repair the wiring
ASM 21-61/04 from:
- the VALVE (10HH) to the ACSC1 (47HH) and,
- the VALVE (10HH) to ground.
** ON A/C ALL
C. Do the test as given in the Para. 3.A.
5. Close-up
A. Put the aircraft back to its initial configuration. |
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