# Proposed AD FAA-2014-0424: Bombardier, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-20-03
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 1, 2014, 79 FR 37246
- Comments due: August 15, 2014
- Became: [AD 2014-20-03](https://openairdocs.org/ad/2014-20-03)
- Docket: FAA-2014-0424 (https://www.regulations.gov/docket/FAA-2014-0424, where comments are filed)
- Project: 2014-NM-003-AD
- FR document: 2014-15378
- Official PDF: https://openairdocs.org/files/sha256/60/13/60135518a381d7308a102f534e55042deb9e0f94db423d4c449ed7fbf04d1212 (from https://www.govinfo.gov/content/pkg/FR-2014-07-01/pdf/2014-15378.pdf)
- Federal Register: https://www.federalregister.gov/documents/2014/07/01/2014-15378/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6C31C26A1FA73B0C86257D08004F7680.0001
- Page: https://openairdocs.org/proposed/FAA-2014-0424

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model BD-700-1A10 and BD-700-1A11 airplanes. This proposed AD was prompted by reports of an incorrectly assembled check tee fitting used in fire extinguishing (FIREEX) distribution lines. This proposed AD would require inspecting to determine the part number and for all affected check tee fittings measuring for correct depth, and replacing if necessary. We are proposing this AD to detect and correct faulty check tee fittings, which will reduce fire extinguishing protection.

## Notices in this docket

- Jul 1, 2014: Notice of proposed rulemaking (NPRM). (first notice), FR document 2014-15378, comments due Aug 15, 2014 (https://www.federalregister.gov/documents/2014/07/01/2014-15378/airworthiness-directives-bombardier-inc-airplanes)

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