COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 60 (Duke) Series Aeroplanes AD/BEECH 60/22 Amdt 1 Elevator Hinge Bracket 5/75 Applicability: All models 60 & 60A with S/Nos. P-3 to P-198. Requirement: 1. Visually inspect elevator hinge brackets P/Nos. 60 524078-3 LH and 60-524078-4 RH for cracking particularly in the areas at both ends of the vertical leg and the forward ends of the inclined legs. 2. Replace brackets with improved items as detailed in Beechcraft SI No. 0342-132, Rev. IV. Compliance: For Para. 1 - Within 50 hours' time in service after the previous inspection and thereafter at intervals not exceeding 50 hours' time in service until replaced. For Para. 2 - Within 200 hours' time in service after 20 May 1975.