Commonwealth legislation

AD/PA-36/10 - Spray Pump Windmill - Modification

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

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Commonwealth

Collection

legislative instrument

Plain English Summary

1/10 complexity

What this is: A mandatory safety fix for specific agricultural aircraft—the Piper PA-36 "Pawnee Brave" series.

Who it affects: Owners and operators of PA-36 aircraft with serial numbers from 36-7360001 to 36-7560041 (with a few specific gaps), but only if the aircraft has Agrinautics spray equipment installed for crop-dusting or firefighting.

What you must do: Modify the spray pump windmill (the small turbine that powers the chemical pump) according to Piper Service Bulletin No. 467. This must be done before the aircraft flies again after 12 December 1975.

Why it matters: The windmill could fail or detach in flight, which risks damage to the aircraft or loss of control during low-level spraying operations. This directive ensures the mechanical fix is applied to prevent accidents.

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AD/PA-36/10 - Spray Pump Windmill - Modification

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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-36 (Pawnee Brave) Series Aeroplanes

AD/PA-36/10 Spray Pump Windmill - Modification 1/76

Applicability: All model PA-36 with S/Nos. 36-7360001 to 36-7560028, 36-7560030 to 36-

7560033, 36-7560036 to 36-7560041 with Agrinautics liquid dispersal equipment installed.

Document: Piper SB No. 467.

Compliance: Before further flight after 12 December 1975.

Source text

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