COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Morovan Zlin Z 526 Series Aeroplanes AD/Z 526/1 Elevator Control Countershaft Lever 3/95 Applicability: All Z 526 F, Z 526 L and Z 526 AFS models. Requirement: 1. Visually inspect the elevator control countershaft lever for cracking with a 10x glass. Inspect in accordance with Moravan Service Bulletin (SB) Z 526/58 Process of Work, Part 1. 2. Replace the elevator control countershaft P/N Z 326.314.1 with new P/N Z 326.314.2 in accordance with Moravan SB Z 526/58 Process of Work, Part 2. Compliance: 1. Initially inspect before 10 hours time in service after 2 March 1995 or before 2 April 1995, whichever occurs first. Re-inspect at intervals not to exceed 100 hours time in service. 2. Replace the countershaft before 2 September 1995. Note: Countershaft replacement does not cancel the Requirement 1 inspection. Background: There is a potential for fatigue cracking in the elevator control countershaft.