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 39.001(1) of CASR 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. Bell OH-58A (206A-1) Series Helicopters AD/OH-58/1 State of Design Airworthiness Directives 9/2008 Applicability: Model OH-58A (Bell 206A-1) series helicopters; including all certificated versions. Requirement: 1. Determine the applicability of the Federal Aviation Administration (FAA) Airworthiness Directives (AD) listed in Table 1. 2. If it is determined that an FAA AD listed in Table 1 is applicable and has not been previously accomplished, perform the actions required by that AD. Table 1 AD Number Effective Date Title 2005-21-03 21 November 2005 Tail Rotor Blade Root Doubler 2003-13-14 12 August 2003 Chip Detector 90-21-03 14 August 1991 Tail Rotor Blade Assembly ` 81-18-01 R1 15 January 2002 Trunnion 78-11-02 R1 15 December 1988 Rotor Blade Straps 76-15-03 29 July 1976 Main Rotor Blade Tension-Torsion Strap 76-04-09 30 March 1976 Main Rotor Hub Yokes 75-18-07 19 September 1975 Rotor Blade Pillow Block Assemblies 75-06-03 20 October 1975 Pitch Link Assembly 74-24-01 15 November 1974 Main Rotor Blade Grips 73-19-08 15 September 1973 Strap Fittings and Pins 72-19-01 15 September 1972 Main Rotor Retention Straps 71-08-03 18 November 1971 Particle Separation Kit Compliance: For Requirements 1 and 2 - Within 30 days after the effective date of this Directive or prior to the issue of a certificate of airworthiness, whichever occurs later. This Airworthiness Directive becomes effective on 28 August 2008. Background: The FAA ADs listed in Table 1 of this Directive is the current list of FAA ADs applicable to the Model OH-58A (206A-1) helicopter and require certain actions for which the compliance times may or may not have passed. CASA has determined that these ADs may be applicable to Australian registered aircraft. This Directive is issued to ensure all State of Design ADs are complied with. CASA appreciates that, due to date of aircraft manufacture or aircraft configuration and modification status, not all the ADs listed in Table 1 will be applicable. David Villiers Delegate of the Civil Aviation Safety Authority 7 July 2008