# Proposed AD FAA-2013-0297: Bombardier, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2013-16-12
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 9, 2013, 78 FR 21079
- Comments due: May 24, 2013
- Became: [AD 2013-16-12](https://openairdocs.org/ad/2013-16-12)
- Docket: FAA-2013-0297 (https://www.regulations.gov/docket/FAA-2013-0297, where comments are filed)
- Project: 2012-NM-205-AD
- FR document: 2013-08205
- Official PDF: https://openairdocs.org/files/sha256/b0/3e/b03e36138de18adb4ee61a164e4eee692a8f0973f8a01c829632801016ccb71d (from https://www.govinfo.gov/content/pkg/FR-2013-04-09/pdf/2013-08205.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/04/09/2013-08205/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/51105271B8764D5D86257B4800476343.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0297

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-102, -103, and -106 airplanes. This proposed AD was prompted by a report of cracking in a lower longeron in a nacelle. This proposed AD would require repetitive inspections for cracking of the lower longerons in the nacelles and replacement with new longerons or repair if necessary. Additionally, this proposed AD specifies an optional terminating action. We are proposing this AD to detect and correct such cracking, which could result in degradation of the structural integrity of the nacelle and possible collapse of the main landing gear (MLG).

## Notices in this docket

- Apr 9, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-08205, comments due May 24, 2013 (https://www.federalregister.gov/documents/2013/04/09/2013-08205/airworthiness-directives-bombardier-inc-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.