COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Bell UH-1 Series Helicopters AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section. AD/UH-1/7 Tail Rotor Grip 7/2000 Applicability: Models UH1B, UH1E, UH1F, UH1L and TH1L with tail rotor grip P/N 204-011-728-1, -13, or -19 installed. Requirement: Remove from service any of the applicable tail rotor grips: 1. with more than 300 hours time in service, or b. where total time in service cannot be established, and substantiated. Note: FAA AD 88-25-05 refers. Compliance: Before further flight after the effective date of this directive. This Airworthiness Directive becomes effective on 13 July 2000. Background: This directive is raised to prevent failure of the tail rotor grip assembly. William Ronald Smith Delegate of the Civil Aviation Safety Authority 25 May 2000 The above AD is notified in the Commonwealth of Australia Gazette on 14 June 2000.