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-44/9 Aileron Balance Weight Attachment Inspection and Modification 10/81 Applicability: All models PA-44-180 with serial numbers 44-7995001 to 44-8195016. All models PA-44-180T with serial numbers 44-8107001 to 44-8107044. Document: Piper S.B. No. 725A. FAA AD 81-16-10 refers. Compliance: Part I: Initially inspect before further flight and thereafter at intervals not exceeding 25 hours time in service until modified in accordance with Piper S.B. No. 725A. Note: The pilot in command may perform and certify for this inspection. Part II: Within 200 hours time in service after 21 August 1981. Background: It is possible that the aileron balance weights may become loose in the outboard leading edge of the aileron.