COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Schweizer (Hughes) 269 Series Helicopters
AD/HU 269/66 Tail Rotor Swashplate Bearing Locknut - Increase in Torque
3/80
Applicability: All model 269A, 269A-1 and 269B. Model 269C with S/Nos. 0004 through 0789. Document: Hughes SIN N-163.
Compliance: Within 100 hours time in service after 31 March 1980.
Background: To prevent loosening of the tail rotor swashplate bearing locknut and possible loss of tail rotor control, the tightening torque of the locknut is increased.