Summary
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Model A330, A340-200, and A340-300 series airplanes; and A340-541 and -642 airplanes. This proposed AD would require inspecting for damage to certain actuators of the low-pressure shut-off valve (LPSOV), and related investigative and corrective actions if necessary. This proposed AD was prompted by a report of damage to the LPSOV pedestal. We are proposing this AD to ensure that, in the event of an engine fire, the LPSOV actuator functions properly to delay or block the fuel flow to the engine and prevent an uncontrollable fire.