Commonwealth legislation

AD/PA-36/18 - Wing Main Spar Carry Through Assembly - Inspection

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

3/10 complexity

This is a safety directive (called an Airworthiness Directive) issued by the Civil Aviation Safety Authority for certain Piper PA-36 agricultural aircraft (Pawnee Brave series).

What it does:

Requires inspection of the wing main spar carry-through assembly — the critical structural component that connects the left and right wings through the aircraft's fuselage.
Operators must follow the specific inspection steps outlined in Piper Service Bulletin No. 552 (the manufacturer’s technical manual).

Who it affects:

Only applies to aircraft with serial numbers between 36-7360001 and 36-756003 that have a specific part installed (Main Spar Carry Through Assembly Part Number 97370-00).

Important context:

This directive only covers inspection requirements. If the assembly needs to be permanently retired (taken out of service), that process is governed by a separate directive (AD/PA-36/6A).

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Current sections

Direct links to the current provisions in AD/PA-36/18 - Wing Main Spar Carry Through Assembly - Inspection.

AD/PA-36/18 - Wing Main Spar Carry Through Assembly - 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 Piper PA-36 (Pawnee Brave) Series Aeroplanes

AD/PA-36/18 Wing Main Spar Carry Through Assembly - Inspection

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Applicability: All models with S/Nos. 36-7360001 to 36-756003 inclusive, with Main Spar Carry Through Assembly P/N 97370-00 installed.

Document: Piper SB No. 552.

Compliance: As detailed in the requirement document.

Note: Retirement of Wing Main Spar Carry Through Assembly is detailed in AD/PA- 36/6A.

Source text

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