Document ID: chunk:federal_register_of_legislation:F2006B08565:body:0
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

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.

 Cirrus Design SR20 and SR22 Series Aeroplanes

                           AD/CIRRUS/3 Roll and Yaw Trim Cartridges Self-Locking Nuts

 13/2002
 DM

 Applicability: Model SR20, serial numbers 1005 through 1241, except 1235, 1237, and 1238.

           Model SR22, serial numbers 0002 through 0333, except 0309, 0322, 0323, and 0328.

           Requirement: Replace the self- locking retaining nut on the yaw trim cartridge and the roll trim cartridge with a new self- locking retaining nut, MS21044N3.

           Note: FAA AD 2002-21-02 Amdt 39-12908 refers.

 Compliance: Within 10 hours time in service after 8 November 2002.

           This Airworthiness Directive becomes effective on 30 October 2002.

           Background: The FAA received a report that, during flight test, the self- locking retaining nut on the yaw trim cartridge came off, and the pilot lost right rudder control. This Directive requires retaining nut replacement on both roll and yaw trim cartridges with new self- locking nuts with a higher axial load capability. Loss of a retaining nut during flight could result in jamming of corresponding flight control system, and loss of control of the aircraft.

 David Alan Villiers
 Delegate of the Civil Aviation Safety Authority 24 October 2002

 The above AD is notified in the Commonwealth of Australia Gazette on 30 October 2002.

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