Summary
The FAA proposes to adopt a new airworthiness directive (AD) for Airbus Model A319-100 series airplanes, Model A320-111 airplanes, Model A320-200 series airplanes, and Model A321-100 series airplanes equipped with any additional center tank (ACT). This proposed AD would require identifying the part number of the ACT and, for certain ACTs, replacing the outer ACT manhole cover and seal. This proposed AD is prompted by reports of an ACT fuel transfer failure due to air leakage around the seal of the outer manhole covers of the ACTs. We are proposing this AD to prevent this leakage, which could result in fuel or fuel vapor leaking into the cargo compartment, and consequent increased risk of a fire in the cargo compartment.