Commonwealth legislation

AD/SM-205/33 - Exhaust System Muffler Assembly - Inspection - Replacement

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires periodic inspection—and replacement if necessary—of exhaust muffler assemblies (P/N 870‑8 or 870‑9) on SIAI Marchetti S205‑22R aeroplanes, with an initial compliance window tied to service hours and repeat checks every 100 hours; technical procedures are in SIAI Marchetti SB No. 205B56. It responds to reported muffler baffling detachment that can cause engine power loss; owners/operators bear inspection, repair and downtime costs.

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AD/SM-205/33 - Exhaust System Muffler Assembly - Inspection - Replacement

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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 SIAI Marchetti S205 and S208 Series Aeroplanes

AD/SM-205/33 Exhaust System Muffler Assembly - Inspection - Replacement

9/83

Applicability: All S205-22R aircraft fitted with muffler assembly P/Ns. 870-8 or P/Ns. 870-9. Document: SIAI Marchetti SB No. 205B56.

Compliance: Within 100 hours time in service after 30th September 1983, or, when muffler assembly has accumulated 500 hours time in service, which- ever occurs later, after 30 September 1983. Thereafter, at intervals of 100 hours time in service.

Background: Instances of detachment of the muffler baffling have been reported by the manufacturer which can result in partial or complete loss of engine power.

Source text

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