FAA has issued airworthiness directive 2020-12-11 for all Airbus A319-111s, -112s, -113s, -114s, -115s, -151Ns, and -153Ns, A320-251Ns, -252Ns, -253Ns, -271Ns, -272Ns and -273Ns and A321-251Ns, -251NXs, -252Ns, -252NXs, -253Ns, -253NXs, -271Ns, -271NXs, -272Ns and -272NX, requiring revising the airplane flight manual and applicable corresponding operational procedures to limit the use of speed brakes in certain airplane configurations and informing all flight crews, thereafter, to operate the airplane with limitations accordingly, effective July 24, 2020.