COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 33 and 35-33 (Debonair/Bonanza) Series Aeroplanes AD/BEECH 33/23 Beryl Aviation Filtrator Assembly 10/75 Applicability: Models 35-33, 35-A33, 35-B33 and 35-C33 which have been modified in accordance with FAA Supplemental Type Certificate No. SA 2219 WE (installation of engine crank-case breather and vacuum pump air-oil separator). Requirement: Remove the Beryl Aviation filtrator assembly P/No. 1000-1 and install P/No. B-1114- M, P/No. B-1114-RM or P/No. 1000-1 RM. Note: FAA AD No. 75-15-08 refers. Compliance: Within 100 hours time in service after 28 November 1975.