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Airworthiness Directive

AD 2022-23-08 87 FR 66084 Superseded

Federal Aviation Administration · 14 CFR part 39

Requires a visual inspection of the stabilizer actuator to confirm that the stabilizer actuator lock ring is present, correctly seated in the groove in the upper housing, and engaged in the clamp nut, applicable corrective…

Superseded by AD 2025-17-08Federal Register (opens in a new tab)FAA DRS (opens in a new tab)

FR document
2022-23899
Amendment
39-22235
Published
2022-11-02
Effective
2022-11-02
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2022-23-08 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

2022-23-08

FR doc 2022-23899 · 87 FR 66084

AD 2022-23-08Published 2022-11-02Effective 2022-11-02

Superseded by 2025-17-08

Supersedence is read from the Federal Register text of the newer AD — the FAA publishes no structured field for it — and names only ADs held in our index.

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 a visual inspection of the stabilizer actuator to confirm that the stabilizer actuator lock ring is present, correctly seated in the groove in the upper housing, and engaged in the clamp nut, applicable corrective actions, and application of a torque seal.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for all Viking Air Limited (Viking) (type certificate previously held by Bombardier Inc. and de Havilland, Inc.) Model DHC-3 airplanes. This AD was prompted by a recent investigation of a Viking Model DHC-3 airplane where the lock ring of the stabilizer actuator was found missing. This AD requires a visual inspection of the stabilizer actuator to confirm that the stabilizer actuator lock ring is present, correctly seated in the groove in the upper housing, and engaged in the clamp nut, applicable corrective actions, and application of a torque seal. This AD also requires sending the inspection results to the FAA. The FAA is issuing this AD 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 2022-05-11 Airworthiness Directives; Viking Air Limited (Type Certificate Previousl... Effective 2022-04-13

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