Commonwealth legislation

AD/HU 369/17 - Tail Rotor Drive System - Inspection

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive from the Civil Aviation Safety Authority requires operators of McDonnell Douglas (Hughes) and Kawasaki 369‑series helicopters with metal tail rotor blades—and especially those with unindexed tail rotor drive shafts—to carry out the Hughes Service Information Notice HN‑86 inspection of the tail‑rotor drive system. An initial inspection and recurring checks are required at 100‑hour intervals; operators bear labour, downtime and any repair costs, creating an incentive to have shafts indexed to avoid the recurring obligation.

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AD/HU 369/17 - Tail Rotor Drive System - Inspection

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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 McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters

AD/HU 369/17 Tail Rotor Drive System - Inspection 6/75

Applicability: All models equipped with metal tail rotor blades and all models with drive shafts not previously indexed.

Document: Hughes SIN No. HN-86.

Compliance: For Part 1 - Within 100 hours time in service after 30 June 1975.

For Part 2 - At intervals not exceeding 100 hours time in service after 30 June 1975.

Source text

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