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UK Part-CAO is a combined Maintenance and Airworthiness Management Organisation Approval for General Aviation Aircraft. A UK Part-CAO organisation may perform both continuing airworthiness management activities and maintenance on aircraft within the scope of UK Part-ML and non-complex aircraft within the scope of UK Part-M (up to 5700 kg MTOW). The approval is limited to aircraft not used by a licenced air carrier.

Additional information for Maintenance and Continuing Airworthiness Organisations

The following information is intended to provide simple guide to some of the changes in regulations when Part-ML became applicable for Part-CAO and Part-145 organisations maintaining aircraft in accordance with the revised Part-M and Part-ML.

In all cases the UK Regulations and AMC/GM are the definitive documents.