Commonwealth legislation

AD/HILLER 12/1 - Main Rotor Blade - Inspection

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive mandates that Hiller UH‑12 helicopters fitted with main rotor blades P/No. 2253‑1101‑03 that have 250+ hours TIS be inspected at every daily or overnight check (effective after 7 Oct 1970), using the procedures in Hiller SIL No. 3007 or FAA AD 60‑17‑2.

It’s mandatory under CASA Part 39, affects operators and maintenance organisations who bear inspection and any repair costs, and requires updating checklists and following the referenced documents for technical detail.

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AD/HILLER 12/1 - Main Rotor Blade - 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 Hiller UH-12 Series Helicopters

AD/HILLER 12/1 Main Rotor Blade - Inspection 10/60

Applicability: All models fitted with main rotor blades P/No. 2253-1101-03 with 250 or more hours time in service.

Document: 1. Hiller SIL No. 3007; or

FAA AD 60-17-2.

Compliance: At each daily or overnight inspection after 7 October 1970.

Source text

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