Commonwealth legislation

AD/BELL 412/4 Amdt 1 - Main Rotor Yoke - Inspection, Retirement and Modification

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

This Airworthiness Directive makes manufacturer-recommended inspections, retirement criteria and modifications for the main-rotor titanium yoke mandatory for Australian-registered Bell 412 helicopters by requiring compliance with the referenced Bell Alert Service Bulletins. It affects owners, operators and maintenance organisations, who must obtain and follow those bulletins, schedule the work, and bear the costs. CASA enforces the AD under Part 39 of the Civil Aviation Regulations.

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Current sections

Direct links to the current provisions in AD/BELL 412/4 Amdt 1 - Main Rotor Yoke - Inspection, Retirement and Modification.

AD/BELL 412/4 Amdt 1 - Main Rotor Yoke - Inspection, Retirement and Modification

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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 Bell Helicopter Textron 412 Series Helicopters

AD/BELL 412/4

Amdt 1

Main Rotor Yoke - Inspection, Retirement and Modification

2/83

Applicability: As specified in requirement documents.

Document: Bell Alert Service Bulletin No. 412-82-6; and Bell Alert Service Bulletin No. 412-82-8; and Bell Alert Service Bulletin No. 412-82-9.

Compliance: As specified in requirement documents.

Background: This Directive follows action recommended by the manufacturer relating to cracking of the main rotor titanium yoke.

Source text

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