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Airworthiness Directive

AD 2018-21-02 83 FR 53567 Active

Federal Aviation Administration · 14 CFR part 39

Requires actions to address the unsafe condition on these products.

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FR document
2018-23106
Amendment
39-19460
Published
2018-10-24
Effective
2018-11-28
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2018-21-02 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

2018-21-02

FR doc 2018-23106 · 83 FR 53567

AD 2018-21-02Published 2018-10-24Effective 2018-11-28

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires actions to address the unsafe condition on these products.

Full official abstract

We are adopting a new airworthiness directive (AD) for Viking Air Limited Model DHC-3 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued 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 AD to require actions to address the unsafe condition on these products.

More directives for de Havilland DHC-3 Otter

  1. AD 2025-17-08 Airworthiness Directives; Viking Air Limited (Type Certificate Previousl... Effective 2025-09-29
  2. AD 2023-22-17 Airworthiness Directives; Viking Air Limited (Type Certificate Previousl... Effective 2024-01-19
  3. AD 2023-18-03 Airworthiness Directives; Viking Air Limited (Type Certificated Previous... Effective 2023-10-24
  4. AD 2022-21-51 Airworthiness Directives; Viking Air Limited (Type Certificate Previousl... Effective 2022-12-01
  5. AD 2022-23-08 Airworthiness Directives; Viking Air Limited (Type Certificate Previousl... Effective 2022-11-02

All de Havilland DHC-3 Otter directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index