AD/BELL 412/11 - Main Rotor Yoke, P/N 412-010-101-123 - Inspection

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

Legislation au F2006B04646 Not in force Legislative Instrument

Legislation content

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 412/11 Main Rotor Yoke, P/N 412-010-101-123 -

Inspection

Applicability: As specified in Requirement Documents.

 

Requirement: Bell Helicopter Textron Alert Service Bulletin 412-85-19.

 

Compliance: Within 100 hours time in service after 31 May 1985 or at the next scheduled


5/85

inspection for Maintenance Release issue after 31 May 1985, whichever is the later.

 

Background:  Scratches were discovered in the centre section of Model 412 Yokes P/N 412-010- 101-123. These occurred at manufacture during preparation of the centre section of the yoke prior to the shot peening process.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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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.