# Proposed AD FAA-2022-0602: Viking Air Limited (Type Certificate Previously Held by Bombardier Inc. and de Havilland Inc.) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-17-05
- Products: Viking Air
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 7, 2022, 87 FR 34591
- Comments due: July 22, 2022
- Became: [AD 2022-17-05](https://openairdocs.org/ad/2022-17-05)
- Docket: FAA-2022-0602 (https://www.regulations.gov/docket/FAA-2022-0602, where comments are filed)
- Project: MCAI-2020-01211-A
- FR document: 2022-12157
- Official PDF: https://openairdocs.org/files/sha256/1b/e5/1be5d3d925e3224dc4e9d517908a63f9a38c3695abd12b3f4a138afc691559b8 (from https://www.govinfo.gov/content/pkg/FR-2022-06-07/pdf/2022-12157.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/06/07/2022-12157/airworthiness-directives-viking-air-limited-type-certificate-previously-held-by-bombardier-inc-and
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-12157-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0602

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2002-14-28, which applies to all de Havilland Inc. (type certificate currently held by Viking Air Limited) Model DHC-2 Mk. I, DHC-2 Mk. II, and DHC-2 Mk. III airplanes. AD 2002-14-28 establishes a life limit for the front fuselage struts and requires repetitively replacing the front fuselage struts every 15 years or repetitively inspecting the struts for corrosion or fatigue damage and replacing when the damage exceeds a certain level. Since the FAA issued AD 2002-14-28, Transport Canada superseded its mandatory continuing airworthiness information (MCAI) to correct this unsafe condition on these products. This proposed AD would require either doing recurring visual inspections, borescope inspections, and non-destructive inspections (NDIs) of the struts and airframe lugs with corrective action as necessary or replacing the struts every 15 years and doing recurring NDIs of the airframe lugs with corrective action as necessary. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jun 7, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-12157, comments due Jul 22, 2022 (https://www.federalregister.gov/documents/2022/06/07/2022-12157/airworthiness-directives-viking-air-limited-type-certificate-previously-held-by-bombardier-inc-and)

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