# Airworthiness Directives; Cirrus Design Corporation Model SR20 Airplanes
> **Rule** · Final rule. · Published 2008-06-02 · Effective 2008-07-07 · 73 FR 31353
## Document
- **Document number:** E8-12047
- **Category:** airworthiness
- **Manufacturer:** Cirrus Design Corporation Model SR20
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 73 FR 31353
- **Publication date:** 2008-06-02
- **Effective date:** 2008-07-07
- **FAA docket:** Docket No. FAA-2008-0284
## Abstract

We are adopting a new airworthiness directive (AD) for certain Cirrus Design Corporation (CDC) Model SR20 airplanes. This AD requires you to perform an inspection and replacement as necessary of the heat exchanger. This AD results from the discovery of engine exhaust fumes in the cabin of CDC Model SR20 airplanes. We are issuing this AD to detect and correct leaks in the exhaust system, which could result in exhaust gases leaking into the cabin heating system. This condition could lead to carbon monoxide in the cabin and incapacitation of the pilot.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/06/02/E8-12047/airworthiness-directives-cirrus-design-corporation-model-sr20-airplanes)
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