# Proposed AD FAA-2018-0189: Viking Air Limited Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-21-02
- Products: Viking Air
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 13, 2018, 83 FR 10809
- Comments due: April 27, 2018
- Became: [AD 2018-21-02](https://openairdocs.org/ad/2018-21-02)
- Docket: FAA-2018-0189 (https://www.regulations.gov/docket/FAA-2018-0189, where comments are filed)
- FR document: 2018-05012
- Official PDF: https://openairdocs.org/files/sha256/14/9a/149a6eae5247fe4f76b040a310ab2c37b4497f28a00120afc7ca54e3e5bff12b (from https://www.govinfo.gov/content/pkg/FR-2018-03-13/pdf/2018-05012.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/03/13/2018-05012/airworthiness-directives-viking-air-limited-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D30204F5A8CBB06E86258250006F1EFC.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0189

## Summary

We propose to adopt a new airworthiness directive (AD) for Viking Air Limited Model DHC-3 airplanes. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as pitting corrosion on the shank of the wing strut attach bolts. We are issuing this proposed AD to require actions to address the unsafe condition on these products.

## Notices in this docket

- Mar 13, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-05012, comments due Apr 27, 2018 (https://www.federalregister.gov/documents/2018/03/13/2018-05012/airworthiness-directives-viking-air-limited-airplanes)

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