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A mechanic reports he removed and replaced the #1 engine thrust reverser control valve on a B737; but was still unable to reactivate the thrust reverser. He continued the MEL for the reverser. At the next station; a pilot reported he thought some circuit breakers were not configured according to the MEL.
| Attributes | |
| ACN | 837616 |
| Time | |
| Date | 200905 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Fan Reverser |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural MEL Deviation - Procedural Published Material / Policy |
Narrative:
I removed and replaced the #1 thrust reverser control valve on a B737 for troubleshooting MEL 78-1A. The maintenance manual references for this job are 78-34-01-004 and 78-34-01-404. I was unable to reactivate the thrust reverser and left the plane on MEL. After installing the valve; I verified that the (circuit) breakers called out for in the maintenance manual; were in the same configuration that the aircraft came in with.at the next station; a pilot reported that he thought some circuit breakers were not configured according to the MEL. It appears that they had not been properly configured at the previous station; before mine.
Original NASA ASRS Text
Title: A Mechanic reports he removed and replaced the #1 engine thrust reverser control valve on a B737; but was still unable to reactivate the thrust reverser. He continued the MEL for the reverser. At the next station; a pilot reported he thought some circuit breakers were not configured according to the MEL.
Narrative: I removed and replaced the #1 thrust reverser control valve on a B737 for troubleshooting MEL 78-1A. The maintenance manual references for this job are 78-34-01-004 and 78-34-01-404. I was unable to reactivate the thrust reverser and left the plane on MEL. After installing the valve; I verified that the (circuit) breakers called out for in the maintenance manual; were in the same configuration that the aircraft came in with.At the next station; a pilot reported that he thought some circuit breakers were not configured according to the MEL. It appears that they had not been properly configured at the previous station; before mine.
Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.