Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Model A319 and A321 series airplanes. This proposal would require replacement of the actuator of the ram air turbine (RAT) with a new actuator. It would also require modification of the actuator wiring. This proposal is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by the proposed AD are intended to prevent failure of the RAT to deploy in an emergency situation, and consequent loss of electrical and hydraulic systems.