Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Model A320 and A321 series airplanes. This proposal would require an inspection to detect trapped water in the elevator sandwich structure, reprotection of the elevator, and corrective actions if necessary. This action is necessary to prevent damage caused by water ingress into the elevator, which could lead to debonding of the elevator skins and degradation of the initial protection, and consequent reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.