COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES GAF N22 and N24 Series Aeroplanes AD/GAF-N22/37 Rudder Control Torque Shaft Universal Joint - Inspection Applicability: All Nomad N22 and N24 Series. Document: GAF Alert SB No. ANMD 27-17. (Telex). Compliance: As per requirement document. 5/80 Background: An instance has occurred of an inservice partial collapse of the subject universal joint.