# Airworthiness Directives; Hawker Beechcraft Corporation Models B200, B200GT, B300, and B300C Airplanes
> **Rule** · Final rule; request for comments. · Published 2010-12-16 · Effective 2010-12-20 · 75 FR 78596
## Document
- **Document number:** 2010-31438
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 75 FR 78596
- **Publication date:** 2010-12-16
- **Effective date:** 2010-12-20
- **FAA docket:** Docket No. FAA-2010-1242
## Abstract

We are superseding an existing airworthiness directive (AD) for the products listed above. That AD currently requires fabricating and installing a placard incorporating information that limits operation when there is known or forecast icing and requires replacing a section of the pneumatic supply tube for the tail deice system with a new tube of a different material. This AD requires fabricating and installing a placard incorporating information that limits operation when there is known or forecast icing and requires replacing the entire length of the pneumatic supply tube for the tail deice system with a new tube of a different material. This AD was prompted by reports of two failures of the pneumatic supply tube for the tail deice system outside the area covered by AD 2008-07-10. We are issuing this AD to prevent collapsed pneumatic supply tubes, which could result in failure of the tail deice boots to operate. This failure could lead to loss of control in icing conditions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/12/16/2010-31438/airworthiness-directives-hawker-beechcraft-corporation-models-b200-b200gt-b300-and-b300c-airplanes)
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