FAA Proposes Airworthiness Directive for ATR 42 Turboprop SeriesThe FAA has proposed an airworthiness directive for all ATR 42-200, -300, and -320 models following reports of worn splines on a flap asymmetry detector.Feb 26, 2026•5 min•ATR 42Airworthiness DirectiveFAAEASAAviation SafetyREGULATORY