Commonwealth legislation

AD/BELL 412/6 - Main Rotor Pitch Link Assemblies - Replacement

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

2/10 complexity

This mandatory safety order requires all owners/operators of Bell Helicopter Textron 412 series helicopters to inspect main rotor pitch link assemblies and replace any incorrectly assembled units with the modified parts specified by the manufacturer within 100 flight hours after 31 March 1983. It addresses factory-assembled defects that could cause pitch link failure and loss of helicopter control.

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Current sections

Direct links to the current provisions in AD/BELL 412/6 - Main Rotor Pitch Link Assemblies - Replacement.

AD/BELL 412/6 - Main Rotor Pitch Link Assemblies - 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 Bell Helicopter Textron 412 Series Helicopters

AD/BELL 412/6 Main Rotor Pitch Link Assemblies - Replacement 3/83

Applicability: All models.

Document: 1. Bell Alert SB 412-82-2, Revision “A” dated June 1982.

Bell Alert SB 412-82-7 dated December 1982. Compliance: Within 100 hours time in service after 31st March 1983.

Background: Manufacturer advises that some 412 helicopters were delivered with incorrectly assembled and rigged main rotor pitch link assemblies, requiring immediate inspection and replacement, with a modified pitch link tube and upper rod and bearing assembly.

Source text

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