Airworthiness Directives, Piper Aircraft, PA-46-350P, PA-46R-350T, PA-46-500 Published 12/24/2008

This is the AD # and Name: 2008-26-11 Piper Aircraft, Inc.: Amendment 39-15777; Docket No. FAA- 2008-1085; Directorate Identifier 2008-CE-057-AD.

Effective Date
(a) This AD becomes effective on January 28, 2009.

ACTION: Final rule.

SUMMARY: We are adopting a new airworthiness directive (AD) for certain Piper Aircraft, Inc. (Piper) Models PA-46-350P, PA-46R-350T, and PA-46- 500TP airplanes. This AD requires you to install a stall warning heat control modification kit. This AD results from ice forming on the stall vane heater during flights into icing conditions with the landing gear down. We are issuing this AD to prevent ice from forming on the stall vane, which may result in failure of the stall warning system. This failure could result in the pilot being unaware of an approaching stall situation.

Full AD in PDF on FAA Website

Full AD in html page on FAA Site