# Special Conditions: Bombardier Inc. Model BD-700-2A12 and BD-700-2A13 Airplanes; Fuselage In-Flight Fire Safety and Flammability Resistance of Aluminum-Lithium Material
> **Rule** · Final special conditions. · Published 2017-04-12 · Effective 2017-05-12 · 82 FR 17531
## Document
- **Document number:** 2017-07326
- **Category:** other
- **Type:** Rule
- **Action:** Final special conditions.
- **Citation:** 82 FR 17531
- **Publication date:** 2017-04-12
- **Effective date:** 2017-05-12
- **FAA docket:** Docket No. FAA-2016-4158
## Abstract

These special conditions are issued for the Bombardier Inc. (Bombardier) Model BD-700-2A12 and BD-700-2A13 airplanes. These airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This design feature is a fuselage fabricated using aluminum-lithium materials instead of conventional aluminum. The applicable airworthiness regulations do not contain adequate or appropriate fire-safety standards for this design feature. These special conditions contain the additional fire-safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/04/12/2017-07326/special-conditions-bombardier-inc-model-bd-700-2a12-and-bd-700-2a13-airplanes-fuselage-in-flight)
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