# Airworthiness Directives; Cirrus Design Corporation Model SR22 Airplanes
> **Rule** · Final rule; request for comments. · Published 2009-12-14 · Effective 2009-12-21 · 74 FR 66040
## Document
- **Document number:** E9-29578
- **Category:** airworthiness
- **Manufacturer:** Cirrus Design Corporation Model SR22
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 74 FR 66040
- **Publication date:** 2009-12-14
- **Effective date:** 2009-12-21
- **FAA docket:** Docket No. FAA-2009-1162
## Abstract

We are adopting a new airworthiness directive (AD) for certain Cirrus Design Corporation Model SR22 airplanes equipped with an anti- ice system approved for flight into known icing. This AD requires you to inspect the compression fittings on the anti-ice fluid distribution lines for proper installation and repair any fittings that were not properly installed. This AD results from the manufacturer finding some anti-ice fluid distribution lines where the compression fittings were not properly installed. We are issuing this AD to detect and correct anti-ice fluid distribution lines with improperly installed compression fittings, which could result in anti-ice fluid distribution line separation. A line separation could result in a total loss of ice protection fluid supply to the protected surfaces, which would allow ice to build on the airplane and degrade the handling qualities and performance.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/12/14/E9-29578/airworthiness-directives-cirrus-design-corporation-model-sr22-airplanes)
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