Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Airbus Model A300-600, A310, A319, A320, A321, A330, and A340 series airplanes. This proposal would require a one-time inspection to determine if certain Thales pitot probes are installed, a check for certain part numbers and serial numbers of the affected pitot probes, and cleaning of the drain hole of any affected pitot probes if obstructed. This action is necessary to prevent obstruction of the air intake of the pitot probes, which could result in misleading information being provided to the flightcrew. This action is intended to address the identified unsafe condition.