# Proposed AD FAA-2018-0551: Bombardier, Inc.

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-22-12
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 6, 2018, 83 FR 31504
- Comments due: August 20, 2018
- Became: [AD 2018-22-12](https://openairdocs.org/ad/2018-22-12)
- Docket: FAA-2018-0551 (https://www.regulations.gov/docket/FAA-2018-0551, where comments are filed)
- FR document: 2018-13360
- Official PDF: https://openairdocs.org/files/sha256/43/f0/43f0973646661c3ba01ad97599808c2fa83b2d3bc59200fd47c2365b46189f3f (from https://www.govinfo.gov/content/pkg/FR-2018-07-06/pdf/2018-13360.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/07/06/2018-13360/airworthiness-directives-bombardier-inc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/777969E277CD4BA5862582C200511522.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0551

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes; Model CL-600-2D15 (Regional Jet Series 705) airplanes; Model CL-600-2D24 (Regional Jet Series 900) airplanes; and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. This proposed AD was prompted by reports of damage to the protective coating and corrosion on the piston/axle of the main landing gear (MLG), caused by friction between the inboard axle sleeve and the axle thrust face. This proposed AD would require revising the maintenance or inspection program, as applicable, to incorporate a detailed inspection of the MLG piston/axle for damage to the protective coating and for corrosion. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jul 6, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-13360, comments due Aug 20, 2018 (https://www.federalregister.gov/documents/2018/07/06/2018-13360/airworthiness-directives-bombardier-inc)

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