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Flight crew of E140; dispatched with multiple MEL items; fail to note that one of the items prohibits dispatch in conjunction with another.
| Attributes | |
| ACN | 720995 |
| Time | |
| Date | 200612 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 140 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 720995 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | maintenance problem : non compliance with mel |
| Independent Detector | other other : n/s |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Company Aircraft |
| Primary Problem | Ambiguous |
Narrative:
We picked up the aircraft inbound from a quick turn. It already had MEL's 28-9 left fuel indicator inoperative; and 28-6 press refueling system inoperative. Previous crew wrote up and reported fuel impending bypass message for #2 engine. Maintenance inspected the filters and applied MEL 73-6. Apparently none of us caught the remark in MEL 28-9 that prohibits the issuance of 73-6 with the previous MEL. We flew the round trip; and I was not aware of the problem until called. There should probably be some software in place to provide notification of potential MEL conflicts. In retrospect an aircraft with so many unrelated fuel problems could have other issues.
Original NASA ASRS Text
Title: FLT CREW OF E140; DISPATCHED WITH MULTIPLE MEL ITEMS; FAIL TO NOTE THAT ONE OF THE ITEMS PROHIBITS DISPATCH IN CONJUNCTION WITH ANOTHER.
Narrative: WE PICKED UP THE ACFT INBOUND FROM A QUICK TURN. IT ALREADY HAD MEL'S 28-9 L FUEL INDICATOR INOP; AND 28-6 PRESS REFUELING SYS INOP. PREVIOUS CREW WROTE UP AND RPTED FUEL IMPENDING BYPASS MESSAGE FOR #2 ENG. MAINT INSPECTED THE FILTERS AND APPLIED MEL 73-6. APPARENTLY NONE OF US CAUGHT THE REMARK IN MEL 28-9 THAT PROHIBITS THE ISSUANCE OF 73-6 WITH THE PREVIOUS MEL. WE FLEW THE ROUND TRIP; AND I WAS NOT AWARE OF THE PROB UNTIL CALLED. THERE SHOULD PROBABLY BE SOME SOFTWARE IN PLACE TO PROVIDE NOTIFICATION OF POTENTIAL MEL CONFLICTS. IN RETROSPECT AN ACFT WITH SO MANY UNRELATED FUEL PROBS COULD HAVE OTHER ISSUES.
Data retrieved from NASA's ASRS site as of January 2009 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.