# Airworthiness Directives; Bombardier Model CL-215-6B11 (CL-215T) Series Airplanes
> **Rule** · Final rule; request for comments. · Published 1998-03-06 · Effective 1998-03-23 · 63 FR 11108
## Document
- **Document number:** 98-5347
- **Category:** airworthiness
- **Manufacturer:** Bombardier Model CL-215-6B11 (CL-215T) Series
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 63 FR 11108
- **Publication date:** 1998-03-06
- **Effective date:** 1998-03-23
- **FAA docket:** Docket No. 97-NM-328-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Bombardier Model CL-215-6B11 (CL-215T) series airplanes. This action requires either replacement of the switching valve-to-rear inlet case sealing air tube assembly with a tube assembly that includes an integral fire detector (intercompressor case [ICC] fire detector loop), and modification of the nacelle fire detection system; or modification of the No. 5 bearing air system. This amendment is prompted by the issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified in this AD are intended to detect internal engine fire within the ICC; or to prevent air/oil from leaking into the ICC, which could result in such fire.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/03/06/98-5347/airworthiness-directives-bombardier-model-cl-215-6b11-cl-215t-series-airplanes)
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