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Air carrier dispatched a B737-400 with a conflicting MEL which would have caused the grounding of the aircraft. However, it was the wrong MEL which did not apply to the write-up so that the log entry was in error and not the actual status of the aircraft!
| Attributes | |
| ACN | 344180 |
| Time | |
| Date | 199608 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : takeoff ground : preflight other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel |
| Qualification | other other : other pilot : commercial pilot : instrument |
| ASRS Report | 344180 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : published procedure non adherence : far other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
Released flts on B737-400 with 2 conflicting mels making it a grounded aircraft. The conflict was caught and aircraft deplaned. MEL book is being changed, ground school for all participants. In doing aftermath research, it was found that the second (and conflicting) MEL was issued in error (wrong MEL for the write-up). So no conflict actually happened except for paperwork. The amount of workload on our graveyard shift (approximately 98 segments) may have contributed to this not being caught.
Original NASA ASRS Text
Title: ACR DISPATCHED A B737-400 WITH A CONFLICTING MEL WHICH WOULD HAVE CAUSED THE GROUNDING OF THE ACFT. HOWEVER, IT WAS THE WRONG MEL WHICH DID NOT APPLY TO THE WRITE-UP SO THAT THE LOG ENTRY WAS IN ERROR AND NOT THE ACTUAL STATUS OF THE ACFT!
Narrative: RELEASED FLTS ON B737-400 WITH 2 CONFLICTING MELS MAKING IT A GROUNDED ACFT. THE CONFLICT WAS CAUGHT AND ACFT DEPLANED. MEL BOOK IS BEING CHANGED, GND SCHOOL FOR ALL PARTICIPANTS. IN DOING AFTERMATH RESEARCH, IT WAS FOUND THAT THE SECOND (AND CONFLICTING) MEL WAS ISSUED IN ERROR (WRONG MEL FOR THE WRITE-UP). SO NO CONFLICT ACTUALLY HAPPENED EXCEPT FOR PAPERWORK. THE AMOUNT OF WORKLOAD ON OUR GRAVEYARD SHIFT (APPROX 98 SEGMENTS) MAY HAVE CONTRIBUTED TO THIS NOT BEING CAUGHT.
Data retrieved from NASA's ASRS site as of July 2007 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.