Document ID: chunk:federal_register_of_legislation:F2006B04566:body:0
Version: federal_register_of_legislation:F2006B04566
Segment Type: other
Provision Reference: 
Character Range: 0–1081

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

 Bell Helicopter Textron 212 Series Helicopters

 AD/BELL 212/35 Tail Rotor Trunnion Bearing Housing 9/86

DM

 Applicability: All model 212 S/N: 30501 to 30999 31101 to 31273 and 31275 32101 to 32142
            32201 to 32262.

 Requirement: Action in accordance with Bell Alert Service Bulletin No. 212-86-39, Revision A.

            Compliance: Part I of the Requirement Document: Within 25 hours time in service or seven days whichever occurs first after 6 August 1986 and thereafter at intervals not exceeding 25 hours time in service or 7 days, whichever occurs first, until Part II is complied with.

            Part II of the Requirement Document: Within 150 hours time in service or 60 days whichever occurs first after 31 July 1986.

 Background: A trunnion bearing housing end web has been found below specified dimensions.
            Failure of the housing caused excessive tail rotor vibration and loss of control.