FAA orders AOA vane upgrades for Boeing 757, 767, 727

Credit: Nigel Howarth/AWST
Reports of nuisance stall warnings triggered by frozen angle-of-attack (AOA) vanes has led FAA to mandate replacement of the parts on Boeing 757s, 767s and 727s. FAA, in a notice of proposed rulemaking set for publication July 9, is proposing a 36-month window for replacing affected AOA vanes—a...

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