COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Embraer EMB-110 (Bandeirante) Series Aeroplanes AD/EMB-110/6 Wing Upper Skin - Inspection 6/79 Applicability: All models. Document: Embraer Service Bulletin 110-57-012. Compliance: As per requirement document. Background: This inspection is a precautionary measure following discovery of skin cracks in the manufacturer's fatigue test.