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A CE560XL pitched 20 degrees nose up when flaps 7 was selected with full nose down trim set. After the aircraft stabilized ATC declared an emergency and the flight diverted to a nearby airport with a long runway.
| Attributes | |
| ACN | 951395 |
| Time | |
| Date | 201105 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Citation Excel (C560XL) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Elevator Trim System |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
On arrival to to our destination at 4000' MSL; 180 KTS and approximately 10 to 15 seconds after selecting flaps 7 the auto pilot disconnected and the airplane pitched nose up 20 degrees. The flying pilot (captain) immediately took control of the airplane and stabilized the aircraft at level flight; 4000 ft at 180KTS. The captain noticed that the trim wheel was full down. After stabilizing the aircraft and ensure full control; ATC was notified. ATC gave us a different altitude and heading in order to continue the traffic flow into our destination and give us an opportunity to run checklists and decide the best course of action. We decided to maintain the current configuration; since the airplane was stable and under control; and look for a long runway to land. A nearby international airport was selected. The airplane was landed flaps 7 on runway 4R without incident. During the post flight nothing out of place was noted. Stab was on proper position; nose down since we elected to leave the flaps 7 after shut down. Note: ATC declared an emergency for us. Company was notified.
Original NASA ASRS Text
Title: A CE560XL pitched 20 degrees nose up when flaps 7 was selected with full nose down trim set. After the aircraft stabilized ATC declared an emergency and the flight diverted to a nearby airport with a long runway.
Narrative: On arrival to to our destination at 4000' MSL; 180 KTS and approximately 10 to 15 seconds after selecting flaps 7 the auto pilot disconnected and the airplane pitched nose up 20 degrees. The flying pilot (Captain) immediately took control of the airplane and stabilized the aircraft at level flight; 4000 FT at 180KTS. The Captain noticed that the trim wheel was full down. After stabilizing the aircraft and ensure full control; ATC was notified. ATC gave us a different altitude and heading in order to continue the traffic flow into our destination and give us an opportunity to run checklists and decide the best course of action. We decided to maintain the current configuration; since the airplane was stable and under control; and look for a long runway to land. A nearby international airport was selected. The airplane was landed flaps 7 on runway 4R without incident. During the post flight nothing out of place was noted. Stab was on proper position; nose down since we elected to leave the flaps 7 after shut down. NOTE: ATC declared an emergency for us. Company was notified.
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.