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A maintenance controller dispatched on-call maintenance personnel to defer the reverser on a B737-700 per the associated minimum equipment list. The next morning; the flight crew found the lower pins were not installed. The maintenance controller stated that he had not verified each step of the MEL procedure with the maintenance technician prior to releasing the aircraft to service.
| Attributes | |
| ACN | 1047117 |
| Time | |
| Date | 201211 |
| Local Time Of Day | 1201-1800 |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Reverser Lockout |
| Person 1 | |
| Function | Other / Unknown |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Procedural MEL |
Narrative:
The aircraft had a right hand thrust reverser light illuminated. I dispatched on-call maintenance personnel to defer the reverser per MEL 78-1-01. The mechanic complied with the MEL procedures; but I did not verify that the lower thrust reverser pins were installed. The next morning; the flight crew found the lower pins were not installed. I dispatched [other] on-call maintenance personnel to the aircraft and they installed the lower pins and verified that the MEL procedure was complied with.
Original NASA ASRS Text
Title: A Maintenance Controller dispatched on-call maintenance personnel to defer the reverser on a B737-700 per the associated Minimum Equipment List. The next morning; the flight crew found the lower pins were not installed. The Maintenance Controller stated that he had not verified each step of the MEL procedure with the Maintenance Technician prior to releasing the aircraft to service.
Narrative: The aircraft had a right hand thrust reverser light illuminated. I dispatched on-call maintenance personnel to defer the reverser per MEL 78-1-01. The Mechanic complied with the MEL procedures; but I did not verify that the lower thrust reverser pins were installed. The next morning; the flight crew found the lower pins were not installed. I dispatched [other] on-call maintenance personnel to the aircraft and they installed the lower pins and verified that the MEL procedure was complied with.
Data retrieved from NASA's ASRS site as of July 2013 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.