Commonwealth legislation

AD/PA-20/9 - Exhaust System - 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This Act has been repealed and is no longer in force. It is retained for historical reference.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

1/10 complexity

What this does: This Airworthiness Directive (AD) mandates safety inspections of the exhaust system on Piper PA-20 Pacer aircraft.

Who it affects: Owners and operators of all Piper PA-20 model aircraft.

What you must do: Inspect the exhaust system at least once every 100 hours of "time in service" (flight time). The inspections must follow the procedures outlined in Piper Service Bulletin No. 324B.

Why it matters: Exhaust system failures can cause carbon monoxide poisoning (a deadly, odourless gas) or engine fires. This directive ensures potential cracks or corrosion are caught before they become dangerous.

Key point: This is a recurring requirement — not a one-off. Every 100 flight hours, the exhaust must be checked again to maintain legal airworthiness.

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AD/PA-20/9 - Exhaust System - 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-20 (Pacer) Series Aeroplanes

AD/PA-20/9 Exhaust System - Inspection NK

Applicability: All models. Document: Piper SB No 324B.

Compliance: Inspection at intervals not exceeding 100 hours time in service

Source text

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