Summary
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A318 and A319 series airplanes; Model A320- 211, -212, -214, -216, -231, -232, and -233 airplanes; and Model A321- 111, -112, -131, -211, -212, -213, -231, and -232 airplanes. This proposed AD was prompted by a report that during a maintenance check, cracks were found in a stiffener of a certain lateral window frame. This proposed AD would require repetitive high frequency eddy current (HFEC) inspections for cracking of a stiffener of a certain lateral window frame, and applicable related investigative and corrective actions, as specified in a European Aviation Safety Agency (EASA) AD, which will be incorporated by reference. The FAA is proposing this AD to address the unsafe condition on these products.