Commonwealth legislation

AD/BELL 47/78 - Main Rotor Gimbal Rings - Retirement Life

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

This Airworthiness Directive sets a mandatory retirement life for the main rotor gimbal rings on all Bell 47 series helicopters, effective 1 September 1976, and implements the technical limits by reference to Bell Service Bulletin SB 47-76-4. It affects Bell 47 owners, operators and maintenance organisations by forcing component removal/replacement per the bulletin, changing maintenance scheduling and costs; technical details and intervals must be obtained from the referenced service bulletin.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/BELL 47/78 - Main Rotor Gimbal Rings - Retirement Life.

AD/BELL 47/78 - Main Rotor Gimbal Rings - Retirement Life

meta-content-style-type: text/css meta-content-type: application/xhtml+xml; charset=utf-8 meta-generator: Aspose.Words for .NET 22.10.0

?xml version="1.0" encoding="utf-8" standalone="no"?>

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 47 (All Variants) Series Helicopters

AD/BELL 47/78 Main Rotor Gimbal Rings - Retirement Life 5/76

Applicability: All models. Document: Bell SB 47-76-4. Effective: 1 September 1976.

Source text

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