A CAO is a organisation certified by the EASA to maintain the airworthiness of aircraft. The CAO carries out annual airworthiness checks and certifies these with a certificate of airworthiness and/or manages aircraft in what is known as a “controlled environment”. See our Combined Airworthiness organisation certificate here.
Annual airworthiness checks for your aircraft
Maintaining the airworthiness of your aircraft
Aircraft Maintenance program
Development and approval of the maintenance program for your aircraft