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A L1011-250 was dispatched with the leading edge slat 'transit light' deferred in conflict with the MEL.
| Attributes | |
| ACN | 378068 |
| Time | |
| Date | 199708 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | L-1011-1 100/200/250 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other oversight : supervisor |
| Qualification | other other : other |
| ASRS Report | 378068 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
| Situations | |
| Publication | Unspecified |
Narrative:
During the turn of the flight just prior to departure maintenance informed me that the leading edge slat transit light was on per pilot write-up with slats retracted. We then concurred that MEL relief was available and aircraft was dispatchable. Per MEL XXXX leading edge extend and leading edge transit 2 installed, 1 must operate. Aircraft was dispatched. After further study of the text it was determined that only the extend light may be deferred due to no requirements are listed for the transit light. The aircraft was then repaired after its following landing and delayed. To avoid this occurrence again the aircraft MEL should be changed to state -- leading edge extend light 1 installed, 1 required if leading edge transit and monitor lights operate normal.
Original NASA ASRS Text
Title: A L1011-250 WAS DISPATCHED WITH THE LEADING EDGE SLAT 'TRANSIT LIGHT' DEFERRED IN CONFLICT WITH THE MEL.
Narrative: DURING THE TURN OF THE FLT JUST PRIOR TO DEP MAINT INFORMED ME THAT THE LEADING EDGE SLAT TRANSIT LIGHT WAS ON PER PLT WRITE-UP WITH SLATS RETRACTED. WE THEN CONCURRED THAT MEL RELIEF WAS AVAILABLE AND ACFT WAS DISPATCHABLE. PER MEL XXXX LEADING EDGE EXTEND AND LEADING EDGE TRANSIT 2 INSTALLED, 1 MUST OPERATE. ACFT WAS DISPATCHED. AFTER FURTHER STUDY OF THE TEXT IT WAS DETERMINED THAT ONLY THE EXTEND LIGHT MAY BE DEFERRED DUE TO NO REQUIREMENTS ARE LISTED FOR THE TRANSIT LIGHT. THE ACFT WAS THEN REPAIRED AFTER ITS FOLLOWING LNDG AND DELAYED. TO AVOID THIS OCCURRENCE AGAIN THE ACFT MEL SHOULD BE CHANGED TO STATE -- LEADING EDGE EXTEND LIGHT 1 INSTALLED, 1 REQUIRED IF LEADING EDGE TRANSIT AND MONITOR LIGHTS OPERATE NORMAL.
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.