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-110/18 Tailplane Deicer System - Modification 8/82 Applicability: All models equipped with pneumatic deicing systems. Document: 1. SB No. 110-30-012; 2. SB No. 110-30-013; 3. SB No. 110-55-020. Note: Brazilian CTA AD 82-05-03 refers. Compliance: Modify in accordance with documents 1, 2 and 3 within 100 hours time in service after 31 October, 1982. Background: Sharp and unexpected pitching down moments have occurred on approach due to fractured tailplane deicer hoses causing ice build-up on horizontal stabilizer leading edges.