# Proposed AD FAA-2022-0143: De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-11-11
- Products: De Havilland Aircraft of Canada
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 23, 2022, 87 FR 10112
- Comments due: April 11, 2022
- Became: [AD 2022-11-11](https://openairdocs.org/ad/2022-11-11)
- Docket: FAA-2022-0143 (https://www.regulations.gov/docket/FAA-2022-0143, where comments are filed)
- Project: MCAI-2021-01401-T
- FR document: 2022-03718
- Official PDF: https://openairdocs.org/files/sha256/2a/42/2a42db27f37261b2ddef00898534fe5bb549de1b9a6be1287e9560d800109c3e (from https://www.govinfo.gov/content/pkg/FR-2022-02-23/pdf/2022-03718.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/02/23/2022-03718/airworthiness-directives-de-havilland-aircraft-of-canada-limited-type-certificate-previously-held-by
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-03718-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0143

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain De Havilland Aircraft of Canada Limited (type certificate previously held by Bombardier, Inc.) Model DHC-8-401 and -402 airplanes. This proposed AD was prompted by reports of a certain bolt at the pivot pin link being found missing or having stress corrosion cracking. This proposed AD would require a modification to the nose landing gear (NLG) shock strut assembly. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Feb 23, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-03718, comments due Apr 11, 2022 (https://www.federalregister.gov/documents/2022/02/23/2022-03718/airworthiness-directives-de-havilland-aircraft-of-canada-limited-type-certificate-previously-held-by)

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