Document ID: chunk:federal_register_of_legislation:F2006B09874:body:0
Version: federal_register_of_legislation:F2006B09874
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 Fokker F50 (F27 Mk 50) Series Aeroplanes

AD/F50/47 Nose Landing Gear Retraction Mechanism 10/91
 Applicability: Serial number 20103 to 20108 inclusive, and 20110 to 20131 inclusive. Requirement:  Action in accordance with the Technical Requirements of RLD AD 90-057, dated
            23 May 1990.

            Note: Fokker Service Bulletin F50-32-004, dated 17 April 1990 refers.

 Compliance: Prior to exceeding 12 000 pressurisation cycles.

            Background:  During full-scale fatigue testing, cracks were found near a lightening hole in the nose landing gear link assembly. To improve the fatigue life of this component, this AD calls for the replacement of the current retraction link assembly with a reinforced unit.