Summary
This document proposes to supersede two existing airworthiness directives (AD), applicable to Airbus Industrie Model A310 and A300-600 series airplanes. One AD currently requires repetitive operational tests of feel and limitation computers (FLC) 1 and 2; the other AD requires replacement of certain FLC's on Model A300-600 series airplanes. Those AD's were prompted by reports that the elevator control operated with stiffness. The actions specified by those AD's are intended to prevent stiff operation of the elevator control and undetected loss of rudder travel limitation function, which could adversely affect the controllability of the airplane. This action would require installation of new FLC's, which would terminate the currently required repetitive operational tests. This action also would revise the applicability of the rule to delete airplanes on which these new FLC's have been installed previously.