US FAA proposed an airworthiness directive to require operators of certain 747-400s to modify thrust reverser control system wiring to prevent inadvertent, automatic retractions of leading edge flaps. The flaps' inadvertent retraction at the wrong time could lead to "reduced climb performance and consequent collision with terrain and obstacles or forced landing of the airplane," the agency warned. It last year mandated a similar fix on 747-400s equipped with Rolls-Royce ...

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