COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Robinson R22 Series Helicopters
AD/R22/10 Tail Rotor Drive Shaft Damper Clips - Replacement 12/81
Applicability: All model R22 series with S/Nos. 0002 to 0220. Document: Robinson Service Bulletin SB 14.
Compliance: Within 25 hours time in service after 5 November 1981.
Background: The manufacturer advises of two known failures to the tail rotor drive shaft damper clip. Tail rotor drive shaft failure may occur as a result of clip failure and loss of support for the centre of the shaft.