Commonwealth legislation

AD/HU 369/77 - Main and Tail Rotor Control Tubes

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires all operators/owners of McDonnell Douglas (Hughes) and Kawasaki 369 series helicopters to perform the inspections and corrective work specified in the manufacturer’s Service Instruction Notices to address discovered cracking in main and tail rotor control tubes.

It imposes an immediate short-term action and a second action at the next maintenance-release inspection, with a final deadline of 31 December 1989.

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AD/HU 369/77 - Main and Tail Rotor Control Tubes

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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 369/77 Main and Tail Rotor Control Tubes 9/89

Applicability: All model 369 series helicopters.

Requirement: Action in accordance with McDonnell Douglas SIN No HN-217, DN-158, EN-48 or FN-36, as applicable.

Compliance: Part 1 of Requirement Document: Unless already accomplished, within 25 flight hours from 14 July 1989.

Part 2 of Requirement Document: At next inspection for issue of a Maintenance Release but not later than 31 December 1989.

Background: The manufacturer advises that cracking of the main and tail rotor control tubes, mounted in the vertical tunnel, has been discovered.

Source text

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