Summary
We propose to adopt a new airworthiness directive (AD) for certain Piper Aircraft, Inc. Models PA-23-250, PA-24-250, PA-24-260, PA-24-400, PA-30, PA-31, PA-31-300, PA-31P, PA-39, and PA-E23-250 airplanes. This proposed AD was prompted by an accident caused by fuel starvation where the shape of the wing fuel tanks and fuel below a certain level in that tank may have allowed the fuel to move away from the tank outlet during certain maneuvers. This proposed AD would require installing a fuel system management placard on the aircraft instrument panel and adding text to the Limitations section of the pilot's operating handbook (POH)/airplane flight manual (AFM). We are proposing this AD to correct the unsafe condition on these products.