Commonwealth legislation

AD/CESSNA 320/12 Amdt 1 - Turbocharger

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This directive mandates removal of insulation or stainless steel heat shields to visually inspect the TCM turbosupercharger assembly (P/N 632729) for cracks, bulges or burnt areas and requires replacement of any defective turbine housing before further flight. It applies to Cessna 320D/E/F aircraft with Continental TSIO‑520‑B engines; the first check is before 425 hours TTS and then at each new Maintenance Release. Compliance and replacement costs fall to owners/operators; the amendment clarifies inclusion of post‑1972 heat shields.

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Current sections

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AD/CESSNA 320/12 Amdt 1 - Turbocharger

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Cessna 320 Series Aeroplanes

AD/CESSNA 320/12

Amdt 1

Turbocharger 9/87

Applicability: All models 320D, 320E, and 320F fitted with Continental model TSIO-520-B engines.

Requirement: Remove the turbosupercharger turbine insulation blanket or stainless steel heat shields and visually inspect the complete surface of the TCM turbosupercharger assembly P/N 632729 (AID P/N 406610) for cracks, bulges, or burnt areas.

Note: Turbine housings exhibiting any cracks, bulges, or burnt areas shall be replaced before further flight.

Compliance: Prior to accumulating 425 hours total time in service and thereafter at each issue of a new Maintenance Release.

Background: This Airworthiness Directive was originally raised to reflect the requirement of FAA AD 70-3-4, effective 31 January 1970. This Amendment is raised to clarify the Requirement, and include reference to stainless steel heat shields, that were fitted beginning with 1972 models.

Source text

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

1 AD/CESSNA 320/12 Amdt 1 - Turbocharger