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Q400 captain experienced an uncommanded roll during initial descent after requiring more than the usual amount of aileron trim to maintain wings level during cruise.
| Attributes | |
| ACN | 1148050 |
| Time | |
| Date | 201401 |
| Aircraft 1 | |
| Make Model Name | Dash 8-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Component | |
| Aircraft Component | Aileron Control System |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Aircraft experienced an uncommanded roll during initial descent after requiring more than the usual amount of aileron trim to maintain wings level during cruise. I did not notice anything abnormal during the pre-flight control check or notice any deflection of spoilers on the pfcs during takeoff roll. Follow the new guidelines set out for the Q400 as a result of this incident.
Original NASA ASRS Text
Title: Q400 Captain experienced an uncommanded roll during initial descent after requiring more than the usual amount of aileron trim to maintain wings level during cruise.
Narrative: Aircraft experienced an uncommanded roll during initial descent after requiring more than the usual amount of aileron trim to maintain wings level during cruise. I did not notice anything abnormal during the pre-flight control check or notice any deflection of spoilers on the PFCS during takeoff roll. Follow the new guidelines set out for the Q400 as a result of this incident.
Data retrieved from NASA's ASRS site 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.