Summary
This document proposes to adopt a new airworthiness directive (AD) that would apply to all Piaggio Aero Industries S.p.A. (PIAGGIO) Model P-180 airplanes. This proposed AD would require you to inspect and determine whether any firewall shutoff or crossfeed valve with a serial number in a certain range are installed and would require you to replace any valve that has a serial number within this range. The proposed AD would allow the pilot to check the logbook and would not require additional action if the check showed that one of these valves was definitely not installed. This proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Italy. The actions specified by this proposed AD are intended to prevent a faulty firewall shutoff or crossfeed valve from developing cracks and leaking fuel. This could result in an engine fire.