COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 400 Series Aeroplanes
AD/CESSNA 400/13 Propeller De-Ice Bolts - Inspection 2/70
Applicability: All models 411, 411A and 421 equipped with propeller de-ice system and fitted with McCauley “K” series or later propellers.
Document: Cessna SL ME69-37.
Compliance: Within 10 hours time in service after 16 February 1970 and there- after on each occasion the propeller, spinner bulkhead or de-icing slip ring is reinstalled or replaced.