Summary
We propose to supersede Airworthiness Directive (AD) 2016-07- 12, which applies to certain Airbus SAS Model A318, A319, A320, and A321 series airplanes. AD 2016-07-12 requires repetitive inspections for damage and cracking of the aft fixed fairing (AFF) of the pylons, and repair if necessary. Since we issued AD 2016-07-12, we have received reports of cracks on a certain rib of a modified AFF of the pylons. This proposed AD would retain the repetitive inspections required by AD 2016-07-12, and require additional repetitive inspections at the upper spar at a certain rib area and corrective actions if necessary. We are proposing this AD to address the unsafe condition on these products.