# Proposed AD FAA-2012-1075: Bombardier, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2016-17-15
- Products: Bombardier
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period.
- Published: October 27, 2015, 80 FR 65666
- Comments due: December 11, 2015
- Became: [AD 2016-17-15](https://openairdocs.org/ad/2016-17-15)
- Docket: FAA-2012-1075 (https://www.regulations.gov/docket/FAA-2012-1075, where comments are filed)
- Project: 2012-NM-111-AD
- FR document: 2015-27267
- Official PDF: https://openairdocs.org/files/sha256/6e/35/6e35663b03ed983b99eabcf2a285423cc854c12299690eb420a1b8c306fd3754 (from https://www.govinfo.gov/content/pkg/FR-2015-10-27/pdf/2015-27267.pdf)
- Federal Register: https://www.federalregister.gov/documents/2015/10/27/2015-27267/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/230B2E2F8B83285B86257EEB004F540D.0001
- Page: https://openairdocs.org/proposed/FAA-2012-1075

## Summary

We are revising an earlier proposed airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. The NPRM proposed to require revising the maintenance or inspection program to incorporate revised tasks specified in certain temporary revisions (TRs) to the airplane airworthiness limitations (AWLs). The NPRM was prompted by the need for more stringent inspection requirements for certain affected components. This action revises the NPRM by proposing to require revising the maintenance or inspection program to incorporate certain revised AWL tasks instead of TRs, and by proposing to require repairs of affected components. We are proposing this supplemental NPRM (SNPRM) to detect and correct fatigue cracking in the affected components, which could result in loss of structural integrity. Since these actions impose an additional burden over those proposed in the NPRM, we are reopening the comment period to allow the public thechance to comment on these proposed changes.

## Notices in this docket

- Oct 16, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-25430, comments due Nov 30, 2012 (https://www.federalregister.gov/documents/2012/10/16/2012-25430/airworthiness-directives-bombardier-inc-airplanes)
- Oct 27, 2015: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document 2015-27267, comments due Dec 11, 2015 (https://www.federalregister.gov/documents/2015/10/27/2015-27267/airworthiness-directives-bombardier-inc-airplanes)

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