AD/OH-58/1 State of Design Airworthiness Directives (Cth)

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