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A B737 flight crew wrote up the aircraft for an amber #2 leading edge slat indication. The mechanic later determined that it was the #2 trailing edge flap amber light.
| Attributes | |
| ACN | 632724 |
| Time | |
| Date | 200410 |
| Day | Fri |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : slc.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Flight crew wrote up #2 leading edge slat amber transit light remained on. I focused on the #2 leading edge slat being the problem and discovered it could be deferred per MEL 27-4C. It was a gate turn-back, so I was trying to expedite the situation. I inspected the sensors on the leading edge slat. I saw the amber light on the overhead panel, but I still had the #2 leading edge slat on my mind, since this was the write-up. I failed to recognize that the amber light was for the #2 flap -- that was my oversight.
Original NASA ASRS Text
Title: A B737 FLT CREW WROTE UP THE ACFT FOR AN AMBER #2 LEADING EDGE SLAT INDICATION. THE MECH LATER DETERMINED THAT IT WAS THE #2 TRAILING EDGE FLAP AMBER LIGHT.
Narrative: FLT CREW WROTE UP #2 LEADING EDGE SLAT AMBER TRANSIT LIGHT REMAINED ON. I FOCUSED ON THE #2 LEADING EDGE SLAT BEING THE PROB AND DISCOVERED IT COULD BE DEFERRED PER MEL 27-4C. IT WAS A GATE TURN-BACK, SO I WAS TRYING TO EXPEDITE THE SIT. I INSPECTED THE SENSORS ON THE LEADING EDGE SLAT. I SAW THE AMBER LIGHT ON THE OVERHEAD PANEL, BUT I STILL HAD THE #2 LEADING EDGE SLAT ON MY MIND, SINCE THIS WAS THE WRITE-UP. I FAILED TO RECOGNIZE THAT THE AMBER LIGHT WAS FOR THE #2 FLAP -- THAT WAS MY OVERSIGHT.
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.