Summary
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to certain Airbus Model A319, A320, and A321 series airplanes, that currently requires modifying the fuel pipe couplings and installing bonding leads in specified locations within the fuel tank. This action would continue to require the modification and installation, but would add new modifications of the bonding leads for certain airplanes. This action also would change the applicability in the existing AD. The actions specified by the proposed AD are intended to prevent ignition sources and consequent fire/explosion in the fuel tank. This action is intended to address the identified unsafe condition.