Transport i lotnictwo · 20/10/1995

Airworthiness Directives; Airbus Model A320 Series Airplanes

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Model A320 series airplanes. This proposal would require replacement of the relays in the forward electronics rack of the braking system of the landing gear with new relays. This proposal is prompted by reports of loss of the systems of the braking/steering control unit (BSCU) on these airplanes due to electrical overvoltage of the relays. The actions specified by the proposed AD are intended to prevent such electrical overvoltage of the relays, which could result in the loss of the BSCU systems, and subsequent loss of the antiskid functions and nose wheel steering of the airplane.