The mission of HNMAA is:
- The control, supervision and certification of aircraft airworthiness or of other aeronautical systems used by the Hellenic Armed Forces and registered in their registers; namely, their suitability to operate in flight and on the ground with an acceptable level of safety for individuals and goods.
- The oversight, control and certification that products, equipment, appliances and services of the Armed Forces, as well as other legal entities or individuals involved in the design, production, maintenance or provision of training to the personnel responsible for the maintenance of products, equipment and appliances, are in compliance with the applicable requirements and airworthiness standards.
- The recognition of foreign airworthiness authorities, as well as of the airworthiness certificates and certifications that these airworthiness authorities issue.