AD/ENST 28/22 - Main Rotor Transmission Mount Bolts - Inspection

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

Legislation au F2006B09578 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

 


Enstrom F-28 Series Helicopters

 

AD/ENST 28/22 Main Rotor Transmission Mount

Bolts - Inspection


5/79

 

Applicability: All model F-28C with S/Nos. 451-2, 452-2, 453, 454-2, 455-2, 456-2, 457, 458, 459,

460-2, 462, 463-2 and 464-2.

 

All model 280C with S/Nos. 1145, to 1169.

 

Document: Enstrom Service Directive Bulletin No. 0049. Compliance: Within 100 hours time in service after 31 July 1979.

Background: It has been found that several of the NAS 146R-57 main rotor transmission mount bolts have defectively formed heads.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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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.