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A B737-300 was dispatched in non compliance with undocumented damage to the right wing aileron trim tab, believe caused by ground equipment.
| Attributes | |
| ACN | 590416 |
| Time | |
| Date | 200308 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : takeoff roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 19000 flight time type : 16000 |
| ASRS Report | 590416 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 230 flight time total : 8000 flight time type : 3000 |
| ASRS Report | 590415 |
| Events | |
| Anomaly | aircraft equipment problem : critical ground encounters : vehicle non adherence : published procedure non adherence : far other anomaly other |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Environmental Factor Chart Or Publication Aircraft |
| Primary Problem | Flight Crew Human Performance |
Narrative:
After 1 leg to ZZZ with no aircraft abnormalities, ZZZ maintenance informed me that the right aileron trim tab was damaged. On the trailing edge of the trim tab, a piece had been cut. It was a rectangular cut about 3/4 inch by 1 1/2 inch. If I had not been told where it was, I don't know if I would have seen it. The first maintenance man to do the walkaround missed it. I have no idea how it was damaged. I believe my first officer must have missed seeing it, just like the first mechanic did. I know my first officer had minimum crew rest because of an event the day before. He is very thorough and has a great attention to detail. The damage looks like it was done by a stand of some kind.
Original NASA ASRS Text
Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE WITH UNDOCUMENTED DAMAGE TO THE R WING AILERON TRIM TAB, BELIEVE CAUSED BY GND EQUIP.
Narrative: AFTER 1 LEG TO ZZZ WITH NO ACFT ABNORMALITIES, ZZZ MAINT INFORMED ME THAT THE R AILERON TRIM TAB WAS DAMAGED. ON THE TRAILING EDGE OF THE TRIM TAB, A PIECE HAD BEEN CUT. IT WAS A RECTANGULAR CUT ABOUT 3/4 INCH BY 1 1/2 INCH. IF I HAD NOT BEEN TOLD WHERE IT WAS, I DON'T KNOW IF I WOULD HAVE SEEN IT. THE FIRST MAINT MAN TO DO THE WALKAROUND MISSED IT. I HAVE NO IDEA HOW IT WAS DAMAGED. I BELIEVE MY FO MUST HAVE MISSED SEEING IT, JUST LIKE THE FIRST MECH DID. I KNOW MY FO HAD MINIMUM CREW REST BECAUSE OF AN EVENT THE DAY BEFORE. HE IS VERY THOROUGH AND HAS A GREAT ATTN TO DETAIL. THE DAMAGE LOOKS LIKE IT WAS DONE BY A STAND OF SOME KIND.
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.