AD/ROTAX/18 - Replacement of Valve Spring Retainers of Engines in Single Valve Spring Configuration
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AD/ROTAX/18 (continued)
This Airworthiness Directive becomes effective on 27 November 2003.
Background: Due to a delay in the purging of the lubrication system during starting, it is possible that the valve spring retainers may crack due to a number of reasons outlined in the SB’s relevant to this Directive. The Austrian CAA requires replacement of the retainers with new reinforced retainers.
Signature of Jim Coyne Delegate of the Civil Aviation Safety Authority
Jim Coyne
Delegate of the Civil Aviation Safety Authority 14 October 2003
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The above AD is notified in the Commonwealth of Australia Gazette on 5 November 2003.