FAA has issued airworthiness directive 2020-01-12 for all Airbus A318s, A319-111s, -112s, -113s, -114s, -115s, -131s, -132s and -133s, A320-211s, -212s, -214s, -216s, -231s, -232s and -233s, A321-111s, -112s, -131s, -211s, -212s, -213s, -231s and -232s, requiring, for airplanes on which a certain modification or replacement is done, revising the aircraft flight manual by removing a certain emergency procedure, effective Feb. 14, 2020.