Commonwealth legislation

AD/AC/34 - Main Landing Gear Upper Bearing - Modification

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

This AD mandates an immediate physical modification to the main landing‑gear upper bearing on specified Twin Commander (Aero/Rockwell/Gulfstream) models, to be carried out exactly per Aero Commander SB No. 83, Rev. A. It affects owners/operators of the listed serial‑numbered aircraft and the maintenance organisations that will perform the work. It matters because compliance is mandatory "forthwith," imposing direct parts, labour and downtime costs on operators while restoring required airworthiness.

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AD/AC/34 - Main Landing Gear Upper Bearing - Modification

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes

AD/AC/34 Main Landing Gear Upper Bearing - Modification 12/67

Applicability: Models 500A, 500B, 560F, 680F, 680FL and 680FL(P) with S/Nos. 871, 875, 893 to 1535 except 1496, 1515, 1517, 1527, 1531, 1532 and 1534.

Document: Aero Commander SB No. 83, Rev. A. Compliance: Forthwith.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.