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A320 captain reports noticing the aircraft is flying with the left wing slightly down during climb and the rudder trim is to the right. The ECAM flight control page indicates the right aileron is deflected full down. An emergency is declared and the flight returns safely to the departure airport. During descent a jolt is felt as the aileron returns to its' normal position and quickly returns to the fully deflected position.
| Attributes | |
| ACN | 1021635 |
| Time | |
| Date | 201207 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Aileron Control System |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 180 Flight Crew Total 20000 Flight Crew Type 1100 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Climbing out with autopilot engaged. We notice airplane was flying in a slight left bank. We analyzed the problem; fuel balanced; engine parameters all normal. Flight control page showed right aileron full down. Rudder trim indicated 1.5 to 3.5 right. Stopped climb at FL270 and slowed to 280 knots. Contacted dispatch and maintenance control. We concluded the best course of action was to return. On descent we experienced a jolt as right aileron returned to normal deflection; followed by right aileron returning to full down deflection. Thinking flight controls were in deteriorating situation; we declared emergency and landed safely.
Original NASA ASRS Text
Title: A320 Captain reports noticing the aircraft is flying with the left wing slightly down during climb and the rudder trim is to the right. The ECAM flight control page indicates the right aileron is deflected full down. An emergency is declared and the flight returns safely to the departure airport. During descent a jolt is felt as the aileron returns to its' normal position and quickly returns to the fully deflected position.
Narrative: Climbing out with autopilot engaged. We notice airplane was flying in a slight left bank. We analyzed the problem; fuel balanced; engine parameters all normal. Flight control page showed right aileron full down. Rudder trim indicated 1.5 to 3.5 right. Stopped climb at FL270 and slowed to 280 knots. Contacted Dispatch and Maintenance Control. We concluded the best course of action was to return. On descent we experienced a jolt as right aileron returned to normal deflection; followed by right aileron returning to full down deflection. Thinking flight controls were in deteriorating situation; we declared emergency and landed safely.
Data retrieved from NASA's ASRS site as of July 2013 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.