Accident investigators call for Bombardier to eliminate risk to pitch trim in Challenger 604 and similar aircraft
Contamination of an electrical circuit affecting operation of the horizontal stabiliser trim control system of a Bombardier Challenger 604 led to a “serious incident†in November in which the crew had difficulty controlling the aircraft, according to a special bulletin issued by the UK Air Accidents Investigation Branch (AAIB).
http://www.flightinternational.com/Article...on+circuit.html
Contamination of an electrical circuit affecting operation of the horizontal stabiliser trim control system of a Bombardier Challenger 604 led to a “serious incident†in November in which the crew had difficulty controlling the aircraft, according to a special bulletin issued by the UK Air Accidents Investigation Branch (AAIB).
http://www.flightinternational.com/Article...on+circuit.html