71-21-08 PIPER: Amdt. 39-1312. Applies to PA-28-140 airplanes Serial Numbers 28- 7125001 through 28-7125666, PA-28-180 airplanes Serial Numbers 28-7105001 through 28- 7105259, PA-28R-180 airplanes, Serial Numbers 28R-180 airplanes, Serial Numbers 28R-7130001 through 28R-7130038, PA-28R-200 airplanes Serial Numbers 28R-7135001 through 28R-7135254.
Compliance required within the next 50 hours' time in service after the effective date of this airworthiness directive unless already accomplished.
To prevent possible binding of the fuel selector handle accomplish the following:
(a) Replace fuel selector valve cover Part Number 99180-( ) in accordance with Piper Service Letter 588 dated September 3, 1971, or later approved revision.
(b) Time intervals for the replacement of the selector valve cover may be adjusted up to a maximum of 10 hours to coincide with aircraft annual or 100 hour scheduled inspections.
This amendment becomes effective October 13, 1971.