Airworthiness Directives; Airbus SAS Airplanes

We are adopting a new airworthiness directive (AD) for certain Airbus SAS Model A321-111, -112, -131, -211, -212, -213, -231, and -232 airplanes. This AD was prompted by a report that during removal of left-hand (LH) gear rib 5, four failed fasteners were discovered. This AD requires a one-time ultrasonic inspection of the LH and right-hand (RH) wing rib 5-to-rear spar attachments for cracked or failed fasteners, and if necessary, a detailed inspection of the gear rib 5 and spar web for cracks and damage; a rotating probe test of the gear rib and spar web bolt holes for cracks and damage; reaming the gear rib and the spar web bolt holes; and replacement of cracked or failed fasteners. We are issuing this AD to address the unsafe condition on these products.