# Airworthiness Directives; Bombardier, Inc. (Type Certificate Previously Held by Canadair Limited) Airplanes
> **Rule** · Final rule. · Published 2017-08-01 · Effective 2017-09-05 · 82 FR 35636
## Document
- **Document number:** 2017-15555
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 35636
- **Publication date:** 2017-08-01
- **Effective date:** 2017-09-05
- **FAA docket:** Docket No. FAA-2017-0333
## Abstract

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-215-6B11 (CL-415 Variant) airplanes. This AD was prompted by a report indicating that an oxygen bottle was found loose while the clamp strap was in the locked position. This AD requires modification of the clamp strap and installation of additional shims, as applicable, to the flight crew's oxygen bottles' retaining structures. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/08/01/2017-15555/airworthiness-directives-bombardier-inc-type-certificate-previously-held-by-canadair-limited)
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