Airworthiness Directives; Avions Pierre Robin Model R2160 Airplanes

This amendment adopts a new airworthiness directive (AD) that applies to certain Avions Pierre Robin Model R2160 airplanes. This AD requires inspecting to assure that the fuel filler cap has a 2.5 millimeter (mm) diameter hole drilled through it or that a vinyl piping is connected to the filler neck inside the cabin. If neither of these items exists, this AD requires replacing the fuel filler cap with a fuel filler cap that has a 2.5 mm diameter hole drilled through it. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for France. The actions specified by this AD are intended to detect and correct the installation of improperly designed fuel venting system parts, which could result in an inadequate fuel supply to the engine with loss of engine power.