Un-commanded pitch down event, en-route cruise, 25 September 2016
While in cruising flight with the autopilot engaged, the aircraft suddenly pitched nose down. The handling pilot had difficulty controlling the aircraft until the autopilot was disengaged and the pitch trim, which had run significantly nose down, was returned to a normal setting. The autopilot was not re-engaged and the aircraft landed without further incident.
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Published: 9 February 2017
Date of occurrence: 25 September 2016