Commonwealth legislation

AD/SF340/7 Amdt 1 - Power Turbine Speed Signal - Overspeed Protection

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Commonwealth

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legislative instrument

Plain English Summary

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The AD requires Saab 340A operators to carry out the corrective work specified in SAAB Service Bulletin SF 340-76-018, effective 31 July 1987, to provide final power‑turbine overspeed protection and prevent uncontained engine failure.

Compliance is mandatory under CASA; operators must arrange, resource and pay for the maintenance, while technical specifics and costs are determined by the referenced service bulletin.

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AD/SF340/7 Amdt 1 - Power Turbine Speed Signal - Overspeed Protection

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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 SAAB SF340 Series Aeroplanes

AD/SF340/7

Amdt 1

Power Turbine Speed Signal - Overspeed Protection

8/87

Applicability: SAAB 340A Aircraft.

Requirement: Action in accordance with SAAB Service Bulletin SF 340-76-018.

Note: Swedish Airworthiness Directive SAD NO. 1-021 refers.

Effectivity: 31 July 1987.

Background: This amendment has been raised to incorporate the final closing action for overspeed protection to prevent engine power turbine overspeed and with it the risk of uncontained engine failure. The amendment supersedes the FAA Telegraphic AD T86-10-51.

Source text

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