Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Model A300 B2 and A300 B4 series airplanes. This proposal would require modification of the 107VU electronics rack in the avionics compartment to ensure that fluid does not enter the rack. This action is necessary to prevent the loss of electrical power during flight, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.