COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Piper PA-28 Series Aeroplanes AD/PA-28/84 Nose Landing Gear - Inspection and Modification Parts I and II 5/82 Applicability: PART I - All models PA-28R-201T Turbo Arrow III S/Nos. 28R-7703001 to 28R- 7803373 and PA-28RT-201T Turbo Arrow IV S/Nos. 28R-7931001 to 28R- 8131193. PART II - All models PA-28R-200 Arrow II S/Nos. 28R-7635522 to 28R-7635545. All models PA-28R-201 Arrow III S/Nos. 28R-7737001 to 28R-7837317. All models PA-28RT-201 Arrow IV S/Nos. 28R-7918001 to 28R- 8118082. Document: Piper SB No. 724 Parts I and II. Note: FAA AD 82-06-011 refers. Compliance: Within 100 hours time in service after 31 May 1982. Background: There have been incidents involving inadvertent retraction of the nose landing gear. These incidents were caused by failures of various components of the nose landing gear retraction/extension system including the down lock, link and brace assemblies, actuator housings and attachment brackets.