AD FAA-2019-0253

We propose to supersede Airworthiness Directive (AD) 2016-07- 22, which applies to all Airbus SAS Model A300 B4-600, B4-600R, and F4- 600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes), and Model A310 series airplanes. AD 2016-07-22 requires modifying the electrical routing installation at the right-hand (RH) and left-hand (LH) wings to achieve a minimum distance between wiring bundles and surrounding structures. Since we issued AD 2016-07-22, we received reports of missing installation information for certain airplanes. This proposed AD would retain the requirements of AD 2016-07-22 and, for certain airplanes, add a requirement to further modify the electrical installations in both wings, as specified in an European Aviation Safety Agency (EASA) AD, which will be incorporated by reference. We are proposing this AD to address the unsafe condition on these products.