# Airworthiness Directives; Piper Aircraft, Inc. Models PA-32R-301T and PA-46-350P Airplanes
> **Rule** · Final rule. · Published 2010-06-23 · Effective 2010-07-28 · 75 FR 35619
## Document
- **Document number:** 2010-14991
- **Category:** airworthiness
- **Manufacturer:** Piper
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 75 FR 35619
- **Publication date:** 2010-06-23
- **Effective date:** 2010-07-28
- **FAA docket:** Docket No. FAA-2010-0122
## Abstract

We are adopting a new airworthiness directive (AD) for certain Piper Aircraft, Inc. Models PA-32R-301T and PA-46-350P airplanes. This AD requires you to replace any spot-welded, V-band exhaust coupling with a riveted, V-band exhaust coupling. This AD results from reports that spot-welded, V-band exhaust couplings are failing. We are issuing this AD to prevent failure of the V-band exhaust coupling, which could cause the exhaust pipe to detach from the turbocharger. This failure could result in release of high-temperature gases inside the engine compartment and possibly cause an in-flight fire. An in-flight fire could lead to loss of control.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/06/23/2010-14991/airworthiness-directives-piper-aircraft-inc-models-pa-32r-301t-and-pa-46-350p-airplanes)
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