74-21-02 PIPER: Amendment 39-1981. Applies to Piper PA-36-285 airplanes serial numbers 36-7360001 through 36-7460025 certificated in all categories.
Compliance required within the next 50 hours time in service after the effective date of this AD, unless already accomplished.
To provide a more reliable stall warning system, accomplish the lift detector relocation and modification per Piper Service Bulletin No. 418 or equivalent approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region.
This amendment becomes effective October 4, 1974.