Commonwealth legislation

AD/HILLER 12/39 - Consolidation of Early Airworthiness Directives

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This Airworthiness Directive (a legally binding safety order issued by the aviation regulator) bundles multiple old safety requirements into one rule for Hiller UH-12 series helicopters (a specific type of aircraft).

What it requires: Before a Hiller UH-12 helicopter can be issued with a Certificate of Airworthiness (the official government permit that allows an aircraft to fly legally), the owner must complete specific modifications and inspections outlined in manufacturer technical notices.

Which documents: The rule references various Service Bulletins (SB) and Service Information Letters (SIL) from Hiller and Soloy Conversions Ltd. These contain the detailed technical instructions for the required safety work.

Who it affects: Anyone who owns, operates, or maintains a Hiller UH-12 series helicopter in Australia.

Why it matters: It ensures older helicopters are brought up to current safety standards before they fly, preventing accidents caused by outdated components or missed structural inspections.

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Current sections

Direct links to the current provisions in AD/HILLER 12/39 - Consolidation of Early Airworthiness Directives.

AD/HILLER 12/39 - Consolidation of Early Airworthiness Directives

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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 Hiller UH-12 Series Helicopters

AD/HILLER 12/39 Consolidation of Early Airworthiness Directives

Applicability: All Hiller UH-12 series helicopters. Requirement: As applicable comply with the following;

3/87

Hiller SIL: 3015A, 3039, 3052, 3054. Hiller SB: 2026, 87 and 2004, 51-2, 32-2, 21-

Hiller SL: 21-4, 30-2. Soloy Conversions Ltd SB: 14-560. Compliance: Prior to issue of Certificate of Airworthiness.

Background: Early modifications and one time inspections of older model UH-12 Helicopters have been consolidated above.

Source text

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