COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Piper PA-44 (Seminole) Series Aeroplanes AD/PA-44/7 Nose Cone Spar - Inspection and Modification 11/80 Applicability: All model PA-44-180 with S/Nos. 44-7995001 to 44-8095021. Document: Piper SB No. 695. Compliance: 1. Inspect within 50 hours time in service after 15 October 1980 and thereafter at intervals not exceeding 50 hours time in service until modified. 2. Modify within 300 hours time in service after 15 October 1980. Background: The manufacturer has received reports of cracking in the nose cone spar in the area of the nose landing gear upper drag brace attach point.