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 equipped with certain cockpit lateral fixed windows manufactured by PPG Aerospace. This amendment requires detailed repetitive inspections of the cockpit lateral fixed windows to detect moisture ingression and delamination, and follow-on/corrective actions, as applicable. This AD also provides for an optional terminating action for the repetitive inspections. The actions specified by this AD are intended to prevent moisture ingression and delamination of the cockpit lateral fixed windows, which could result in the loss of the outer glass ply, and consequent damage to the airplane and injury to people or damage to property on the ground. This action is intended to address the identified unsafe condition.