Airworthiness Directives; Airbus Model A310 and A300-600 Series Airplanes

This amendment adopts a new airworthiness directive (AD), applicable to all Airbus Model A310 and A300-600 series airplanes, that requires a one-time visual inspection to determine the accuracy of the outer placards of the static ports. This amendment also requires a one- time inspection to detect crossed connections of the air data static system and the static probe heating system, and correction of any discrepancies. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent erroneous display of altitude information to the flight crew, and consequent reduced operational safety during all phases of flight.