COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES S.L. Industries Commander 100 Series and Volair 10 Series Aeroplanes AD/AC-100/7 Rudder Control System - Inspection and Modification Applicability: All models with S/Nos. 001 to 250. 8/68 Requirement: 1. Remove paint over an area extending 3/4 of an inch aft of the cable attachment hole in the left and right rudder control arms P/N 35321 and inspect for cracking using a 10 power glass. 2. Modify both arms P/N 35321 in accordance with Aero Commander SB No. 1009. Compliance: Inspect daily until modified. Modify within 100 hours' time in service from 1 August 1968.