COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Bell Helicopter Textron 47 (All Variants) Series Helicopters AD/BELL 47/80 Amdt 3 Main Rotor Head Counterweight Rod 10/86 Applicability: All models 47G-2, 47G-2A, 47G-2A-1, 47G-3, 47G-3B, 47G-3B-1, 47G-3B-2, 47G- 3B-2A, 47G-4, 47G-4A, 47G-5, 47G-5A, 47J, 47J-2, and 47J-2A. Document: Bell ASB No. 47-78-2, Rev. B. Kawasaki-Bell KSB-Bell 348A. Compliance: Within 100 hours time in service after 31 October 1982, and thereafter at periods not exceeding 300 hours time in service. Background: Service experience indicates the need to reduce the inspection periods for counterweight rods. This Directive has been amended to include Kawasaki-Bell helicopters.