2022-23-08
FR doc 2022-23899 · 87 FR 66084AD 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Superseded by 2025-17-08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.
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…
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.