COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Casa 212 Series Aeroplanes AD/CASA/22 Inner Flap Fittings 9/96 Applicability: All models. Requirement: Action in accordance with CASA SB 212-57-10. Note: Spanish DGAC AD 03/96 refers. Compliance: Within 100 hours time in service after 15 August 1996, thereafter at intervals not exceeding 100 hours until modified. Background: Cracking has been detected in the inner flap fittings. This Directive is issued to prevent an unsafe condition developing and going undetected.