COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Agusta A109 Series Helicopters AD/A109/3 Amdt 1 Passenger and Pilots' Door Emergency Release Mechanism 9/86 Applicability: All models A109A and A109AII. Requirement: Action in accordance with Agusta Bollettino Tecnico No. 109-48, Revision A. Compliance: As per the Requirement Document. Background: An operator has experienced the loss of a passenger door during flight as a result of a failure to observe the correct refitting procedures. Amendment 1 introduces a modification that simplifies the inspection procedure.