COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Schweizer (Hughes) 269 Series Helicopters AD/HU 269/95 Cyclic Pitch Control 7/90 DM Applicability: All model 269C helicopters S/N 0004 thru 1456. Requirement: Unless previously accomplished, action in accordance with Schweizer Service Bulletin B-237. Note: FAA Emergency AD 90-09-07 refers. Compliance: Prior to 18 May 1990. Background: The manufacturer has advised that movement of the lower longitudinal cyclic control rod spring attachment clamp, P/N AN735-9, has occurred. Movement of this clamp could restrict cyclic control which could result in loss of helicopter control.