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Pilot of cessna citation ii reported the pitch trim was functioning in opposite direction to intended input.
| Attributes | |
| ACN | 1480134 |
| Time | |
| Date | 201708 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | HEF.Airport |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Citation II/SP (C551) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Takeoff |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Elevator Trim System |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 134 Flight Crew Total 7680 Flight Crew Type 2000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Maintenance |
Narrative:
Immediately after rotation the pitch trim forces on the aircraft required nose up trim. When nose up trim was applied a nose down pitching force was encountered. Upon further application of up trim a more pronounced nose down force was encountered. Both the pic and sic applied back pressure on the control column to overcome the nose down tendency. A close in flat pattern was flown and the aircraft landed uneventfully.maintenance had rigged the trim actuator on the tail backwards. Neither the shop technicians nor the flight crew caught this error until a flight was attempted.in future this pilot will perform a full flight control and trim control check of any aircraft coming out of maintenance personally.
Original NASA ASRS Text
Title: Pilot of Cessna Citation II reported the pitch trim was functioning in opposite direction to intended input.
Narrative: Immediately after rotation the pitch trim forces on the aircraft required nose up trim. When nose up trim was applied a nose down pitching force was encountered. Upon further application of up trim a more pronounced nose down force was encountered. Both the pic and sic applied back pressure on the control column to overcome the nose down tendency. A close in flat pattern was flown and the aircraft landed uneventfully.Maintenance had rigged the trim actuator on the tail backwards. Neither the shop technicians nor the flight crew caught this error until a flight was attempted.In future this pilot will perform a full flight control and trim control check of any aircraft coming out of maintenance personally.
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.