The Aviation Competence Centre (ACC), based at Maastricht–Aachen Airport, is an EASA Part-147 approved Maintenance Training Organization that delivers internationally recognized EASA Part-66 basic and type training.

ACC provides training in Categories A1, A2, B1.1, B1.2, B1.3, B1.4, and B2 (avionics), as well as tailor-made corporate programs covering composite repair, human factors, and type-specific courses. All Part-66 module examinations are available in English and are open to international candidates. Graduates receive a Certificate of Recognition (EASA Form-148), valid for ten years.