 Its aircraft repair services are focused on turboprop, regional jet, and narrowbody aircraft such as the ATR 42, ATR 72, Dash 8, Q400, ERJ, CRJ, MD80 and 737.Its engine tear down operation specializes in CFM56, CF6-80, and CF6-50 engine types.In February 2015, ART laid off between 50 and 75 employees.