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An airbus -300 in cruise required 5 degrees right wing down trim. Flight was dispatched with krueger flaps disabled per the MEL.
| Attributes | |
| ACN | 567924 |
| Time | |
| Date | 200212 |
| Day | Mon |
| 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 | A300 |
| 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 : first officer |
| Qualification | pilot : atp |
| ASRS Report | 567924 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa other flight crewb |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : fault isolation performance deficiency : repair |
| Supplementary | |
| Problem Areas | Company Aircraft Maintenance Human Performance Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
We left ZZZ on flight abcd dec/mon/02. Dispatched with krueger flaps disabled. At cruise altitude, the captain, flying, noted aileron trim at 5 degrees right wing down. We discussed the possible relationship of kruegers to aileron trim. We didn't think disabled kruegers could deploy, so we phone patched dispatch and maintenance. We were 250-350 NM from ZZZ during the consultation. Fuel burn was normal, and no vibrations. Other abnormalities were present. We elected to continue to ZZZ1 and landed uneventfully ahead of projected fuel burn. Callback conversation with reporter revealed the following information: the reporter stated this entire krueger flap incident started out as an indication problem, and the kruger flaps were disabled per the MEL. The reporter said it is believed the right flap was disabled, but the left flap was not disabled. The reporter stated this airplane flew in this condition for 2 weeks before a positive fix was accomplished. The reporter said the maintenance action taken for the fix was unknown.
Original NASA ASRS Text
Title: AN AIRBUS -300 IN CRUISE REQUIRED 5 DEGS R WING DOWN TRIM. FLT WAS DISPATCHED WITH KRUEGER FLAPS DISABLED PER THE MEL.
Narrative: WE LEFT ZZZ ON FLT ABCD DEC/MON/02. DISPATCHED WITH KRUEGER FLAPS DISABLED. AT CRUISE ALT, THE CAPT, FLYING, NOTED AILERON TRIM AT 5 DEGS R WING DOWN. WE DISCUSSED THE POSSIBLE RELATIONSHIP OF KRUEGERS TO AILERON TRIM. WE DIDN'T THINK DISABLED KRUEGERS COULD DEPLOY, SO WE PHONE PATCHED DISPATCH AND MAINT. WE WERE 250-350 NM FROM ZZZ DURING THE CONSULTATION. FUEL BURN WAS NORMAL, AND NO VIBRATIONS. OTHER ABNORMALITIES WERE PRESENT. WE ELECTED TO CONTINUE TO ZZZ1 AND LANDED UNEVENTFULLY AHEAD OF PROJECTED FUEL BURN. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THIS ENTIRE KRUEGER FLAP INCIDENT STARTED OUT AS AN INDICATION PROB, AND THE KRUGER FLAPS WERE DISABLED PER THE MEL. THE RPTR SAID IT IS BELIEVED THE R FLAP WAS DISABLED, BUT THE L FLAP WAS NOT DISABLED. THE RPTR STATED THIS AIRPLANE FLEW IN THIS CONDITION FOR 2 WKS BEFORE A POSITIVE FIX WAS ACCOMPLISHED. THE RPTR SAID THE MAINT ACTION TAKEN FOR THE FIX WAS UNKNOWN.
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.