Commonwealth legislation

AD/PA-25/28 - Inertia Reel Installation

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

1/10 complexity

What it is: A mandatory safety modification for Piper PA-25 Pawnee aircraft (agricultural planes used for crop dusting and aerial work).

What it requires: Owners must fit an inertia reel to the pilot's safety harness. This is a locking mechanism—like the seatbelt in your car—that allows normal movement but locks tight during sudden stops or impacts to prevent the pilot being thrown forward.

Technical standard: The reel must meet US military specification MIL-R-8236 (or an equivalent standard approved by the Secretary responsible for aviation).

Who it affects: All owners and operators of Piper PA-25 series aircraft.

Why it matters: Prevents serious injury or death during emergency landings, turbulence, or sudden deceleration by restraining the pilot's upper body. The original compliance deadline was 1 February 1969.

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AD/PA-25/28 - Inertia Reel Installation

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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 Piper PA-25 (Pawnee) Series Aeroplanes

AD/PA-25/28 Inertia Reel Installation 12/68

Applicability: All models.

Requirement: Modify the pilot’s harness installation where necessary to fit a multi-directional type inertia reel complying with the US specification MIL-R-8236 or other specification acceptable to the Secretary.

Compliance: Before 1 February 1969.

Source text

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