COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Brantly B-2 Series Helicopters AD/B-2/22 Seat Back Adjustment Wire - Removal NK Applicability: All model B-2 fitted with seat back adjustment wire P/N B2-334-32. Requirement: Remove the seat back adjustment wire P/N B2-334-32 from the left and right seat backs; or FAA AD 62-6-1. Compliance: Forthwith.