Commonwealth legislation

AD/AA-5/4 - Aileron - Additional Drain Holes

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

This Airworthiness Directive mandates a safety modification for Gulfstream/Grumman American AA-5 series light aircraft (including the Traveler, Cheetah, and Tiger models).

What it requires: Owners must drill additional drain holes in the aileron (the hinged control surface on the trailing edge of the wing) to prevent water accumulation inside the structure.

Why it matters: Trapped water can cause corrosion (rust) or freeze at altitude, potentially jamming the flight controls and creating a serious safety hazard.

How to comply: Follow the technical instructions in American Aviation Service Bulletin No. 132. The modification must be completed within 100 hours of flight time after 30 November 1972.

Who is affected: All owners and operators of AA-5 series aircraft registered in Australia.

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AD/AA-5/4 - Aileron - Additional Drain Holes

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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 Gulfstream (Grumman American/ American Aviation) AA-5 Series Aeroplanes

AD/AA-5/4 Aileron - Additional Drain Holes NK

Applicability: All models.

Document: American Aviation SB No. 132.

Compliance: Within 100 hours’ time in service after 30 November 1972.

Source text

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