Frozen Elevator Nearly Downs Jet | Aviation International News

Frozen Elevator Nearly Downs Jet

Aircraft had been left outside for three days at Helsinki before the incident flight.

By AIN Staff • AIN Staff

April 7, 2015

According to a newly released Air Accident Investigation Board of Norway (AIBN) final report, de-icing fluid entered a Norwegian Air Shuttle Boeing 737-800's tail section and froze on three of four input cranks to the two elevator power control units (PCU), causing a Dec. 26, 2012 unintentional pitch up incident that nearly resulted in a complete loss of control while the aircraft was on approach to Kittila Airport in Finland. The Boeing was deiced before departure at Helsinki Airport to remove about 10 inches of snow that had accumulated while the aircraft sat outside for three days.

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