Airworthiness Directives; Airbus Model A319, A320, and A321 Series Airplanes

This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A319, A320, and A321 series airplanes, that requires checking the identification plate on the ram air turbine (RAT) actuator and re-identifying the actuator or replacing the actuator with one which has been cleaned and tested by its manufacturer. This action is necessary to prevent jamming of the RAT actuator in an emergency which requires deployment of the RAT, and consequent loss of hydraulic and electrical power in the airplane. This action is intended to address the identified unsafe condition.