COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beagle B206 Series Aeroplanes AD/BEA 206/6 Exhaust Bellows - Retirement Life 9/69 Applicability: Model B206 Series 2. Requirement: Retire from service exhaust bellows P/N CE20901 and P/N CE20806. Compliance: 1. For exhaust bellows with more than 500 hours total time in service as at 29 September 1969: Within the next 100 hours time in service after 29 September 1969. 2. For exhaust bellows with less than 500 hours time in service: Before 600 hours time in service and thereafter at intervals not exceeding 600 hours time in service. Note: Beagle B206, Series 2, Maintenance Schedule, Volume 5, page 40-8, dated 30 April 1967 also refers.