67-03-07 PIPER: Amdt. 39-334 Part 39 Federal Register January 4, 1967. Applies to Model PA-32-260 Airplanes, Serial Numbers 32-151 through 32-535.
Compliance required within the next 50 hours' time in service after the effective date of this AD unless already accomplished.
To prevent inadvertent fuel transfer from the outboard tanks to the inboard main tanks through a malfunctioning fuel tank selector valve, replace Airborne Mechanism fuel selector valve, Model 1H26-1, with Airborne Mechanism fuel selector valve, Model 1H26-2, (Piper P/N 492 104).
(Piper Service Letter No. 476 pertains to this subject.)
This directive effective February 3, 1967.