Airworthiness and maintenance organisations Maintenance organisations Information for organisations that perform maintenance under CAR 30 or Part 145. Continuing airworthiness Read about continuing airworthiness, including inspections and becoming an approved maintenance organisation. Continuing Airworthiness Management Organisations Information for CAMO's that operate under Part 42G. Maintenance training organisations Information for maintenance training organisations that operate under Part 147. Information about airworthiness Airworthiness Directives Find Airworthiness Directives (ADs) for each category. Airworthiness Bulletins Find airworthiness bulletins (AWBs) for airframes, avionics, engines and general advice. Report and view defects Find out about the Defect Report Service (DRS), our system which allows people to report and view major defects with aircraft or aircraft parts. Advisory Circulars Learn about Advisory Circulars and how they are used to explain particular regulatory requirements. Find a delegate for airworthiness service Find authorised airworthiness delegates by using our search function. Foreign airworthiness data Mandatory and non-mandatory airworthiness data issued by foreign national aviation authorities (NAA).