COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Robin Aviation Series Aeroplanes AD/ROBIN/22 Carburettor Spacer 7/95 Applicability: Robin DR 400 and R 2160 aircraft as detailed by serial number in Pierre Robin Airplanes Service Bulletin No. 139. Requirement: Action in accordance with Pierre Robin Airplanes Service Bulletin No. 139. Note: DGAC Airworthiness Directive 94-275(A) refers. Compliance: Effective 22 June 1995; within 10 hours time in service. Background: This Directive has been issued to require an inspection of the carburettor to air heater box spacer for evidence of adhesive tape. The requirement follows a report of pieces of adhesive tape being found in the bore of a carburettor spacer. Should adhesive tape in the carburettor spacer bore become dislodged in flight, the tape may interfere with the carburettor operation with a subsequent loss of engine power.