# Proposed AD FAA-2009-0712: Bombardier Model DHC-8-100 and DHC-8- 200 Series Airplanes, and Model DHC-8-301, -311, and -315 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2010-04-12
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of Proposed Rulemaking (NPRM).
- Published: August 13, 2009, 74 FR 40778
- Comments due: September 14, 2009
- Became: [AD 2010-04-12](https://openairdocs.org/ad/2010-04-12)
- Docket: FAA-2009-0712 (https://www.regulations.gov/docket/FAA-2009-0712, where comments are filed)
- Project: 2007-NM-152-AD
- FR document: E9-19420
- Official PDF: https://openairdocs.org/files/sha256/fa/c2/fac2e6f54b64dbaedd01fa08681b3fb9c858b3b79c9d3fca47b4ed8206cf6e97 (from https://www.govinfo.gov/content/pkg/FR-2009-08-13/pdf/E9-19420.pdf)
- Federal Register: https://www.federalregister.gov/documents/2009/08/13/E9-19420/airworthiness-directives-bombardier-model-dhc-8-100-and-dhc-8-200-series-airplanes-and-model
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6C3C6EE7140B3C8486257611004D2590.0001
- Page: https://openairdocs.org/proposed/FAA-2009-0712

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Model DHC-8-100 and DHC-8-200 series airplanes, and DHC-8-301, -311, and -315 airplanes. This proposed AD would require implementing a corrosion prevention and control program (CPCP) either by accomplishing specific tasks or by revising the maintenance inspection program to include a CPCP. This proposed AD results from the determination that, as airplanes age, they are more likely to exhibit indications of corrosion. We are proposing this AD to prevent structural failure of the airplane due to corrosion.

## Notices in this docket

- Aug 13, 2009: Notice of Proposed Rulemaking (NPRM). (first notice), FR document E9-19420, comments due Sep 14, 2009 (https://www.federalregister.gov/documents/2009/08/13/E9-19420/airworthiness-directives-bombardier-model-dhc-8-100-and-dhc-8-200-series-airplanes-and-model)

---
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.