Airworthiness Directive · Amendment 39-15777 · Piper Aircraft, Inc. Models PA-46-350P, PA-46R-350T, and PA-46-500TP Airplanes
Piper Aircraft, Inc. Models PA-46-350P, PA-46R-350T, and PA-46-500TP Airplanes
This AD applies to the following airplane models and serial numbers that are certificated in any category:
| Models | Serial Nos. |
|---|---|
| PA-46-350P | 4622001 through 4622200 and 4636001 through 4636445. |
| PA-46R-350T | 4692001 through 4692054. |
| PA-46-500TP | 4697001 through 4697365. |
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.
To address this problem, you must do the following, unless already done:
| Actions | Compliance | Procedures |
|---|---|---|
| Install Stall Warning Heat Control Modification Kit, Piper part number 88452-002 | Within the next 100 hours time-in-service after January 28, 2009 (the effective date of this AD) | As specified in Piper Mandatory Service Bulletin No. 1192, dated September 15, 2008, following Drawing No. 88452, dated June 19, 2008. |
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
