AAIB investigation to Saab 2000, G-LGNR

Reduction in aircraft controllability, near Manchester, 6 November 2015.

Summary:

皇冠体育app pilots observed that the aircraft was flying in an unusual attitude. Shortly afterwards a roll mistrim indication illuminated to indicate that there were untrimmed forces in the aileron system. 皇冠体育app pilots disconnected the autopilot and recovered the aircraft to straight and level flight. 皇冠体育app roll mistrim indication ceased but the EICAS indicated that both ailerons were deflected up. 皇冠体育app pilots decided to action a checklist which involved pulling a handle to separate the left and right ailerons. 皇冠体育appy found that having pulled this handle, aircraft controllability was reduced. 皇冠体育app aircraft landed safely from its subsequent approach

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Published 12 January 2017