AD/BELL 412/8 - Installation of Main Rotor Droop Restraint Kit and Cyclic Stick Centring Indicator

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2006B04681 Not in force Legislative Instrument

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Bell Helicopter Textron 412 Series Helicopters

 

AD/BELL 412/8 Installation of Main Rotor Droop Restraint

Kit and Cyclic Stick Centring Indicator

Applicability: All models with S/Nos. prior to 33101. Document:  Bell Alert Service Bulletin No. 412-83-11. Compliance:               1 September 1983.


6/83

Background:  These modifications result from BHT investigations of main rotor yoke cracking. They are designed to prevent excessive main rotor yoke loads while the aircraft is parked, and during ground operation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.