COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Auster/Beagle A.61 Series Aeroplanes AD/AUS/18 Fabric Covering 3/64 Applicability: Mk. III with wings not covered to Dwg. EEH-48. Mk. IV and V with wings not covered to Dwg. EGH-37. J1 with wings not covered to Dwg. EJH-72. J1B, J1N with wings not covered to Dwg. EJH-72. J2 and J4 with wings not covered to Dwg. EJH-52. J5 with wings not covered to Dwg. EJH-72. Other J5 series with wings not covered to Dwg. EJH-437. Requirement: 1. Modify the wing rib stringing by introducing additional stringing in the leading edge area - Beagle Drawing No. CSK 3483 refers. 2. When it becomes necessary to recover the wing it shall be recovered to the appropriate scheme called up in paragraph 1 or a scheme approved by the Secretary. Note: Beagle Service Bulletin (Auster Series) No. 53 contains all relevant information. Compliance: Forthwith.