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An airbus A320 first officer reports that during taxi-out; when either sidestick was deflected full right; the left aileron deflection was only half down as noted on the ECAM flight controls page. No other indication of a flight control malfunction; it was later discovered that the left aileron outboard actuator rod had separated.
| Attributes | |
| ACN | 868954 |
| Time | |
| Date | 201001 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Aileron |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 89 Flight Crew Total 6622 Flight Crew Type 1058 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
During the taxi-out to the runway; after second engine was started; we performed the flight control check. I noticed when either sidestick was deflected full right; the left aileron deflection was only 1/2 down. There were no other indications of a flight control malfunction. I advised ZZZ ground that we needed to run a checklist and required more time prior to departure. The captain then rechecked the flight controls using his sidestick and observed the same results. The captain set the parking brake; assigned control to me; and called maintenance on his cell phone. Maintenance instructed us to return to the gate. I told ZZZ ground we were safe; but needed to return to the gate. Several hours later we swapped aircraft and continued without incident. The left aileron outboard actuator was malfunctioning.
Original NASA ASRS Text
Title: An Airbus A320 First Officer reports that during taxi-out; when either sidestick was deflected full right; the left aileron deflection was only half down as noted on the ECAM Flight Controls page. No other indication of a flight control malfunction; it was later discovered that the left aileron outboard actuator rod had separated.
Narrative: During the taxi-out to the runway; after second engine was started; we performed the flight control check. I noticed when either sidestick was deflected full right; the left aileron deflection was only 1/2 down. There were no other indications of a flight control malfunction. I advised ZZZ Ground that we needed to run a checklist and required more time prior to departure. The Captain then rechecked the flight controls using his sidestick and observed the same results. The Captain set the parking brake; assigned control to me; and called Maintenance on his cell phone. Maintenance instructed us to return to the gate. I told ZZZ Ground we were safe; but needed to return to the gate. Several hours later we swapped aircraft and continued without incident. The left aileron outboard actuator was malfunctioning.
Data retrieved from NASA's ASRS site as of April 2012 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.