Commonwealth legislation

AD/LA-4/5 - Battery Relay - Installation

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

This mandatory Airworthiness Directive affects owners/operators of Lake LA-4-200 amphibious aircraft. It requires installation of a battery relay adjacent to the battery so the pilot can fully disconnect battery power in flight, cutting heavy cables close to the source.

It matters because, in an in-flight electrical fire or short, the relay provides an emergency kill to stop live cables feeding a fire. Compliance is required before registration or within 200 flight hours after 31 May 1972.

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AD/LA-4/5 - Battery Relay - Installation

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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 Consolidated Aeronautics, Colonial and LA-4 Series Aeroplanes

AD/LA-4/5 Battery Relay - Installation 4/72

Applicability: All Lake LA-4-200 models.

Requirement: Install a battery relay adjacent to the battery so that battery power can be disconnected in flight from the heavy duty cables at a point as close to the battery as possible.

Compliance: Before issue of a Certificate of Airworthiness or within 200 hours time in service after 31 May 1972.

Source text

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