Piedmont Propulsion Systems, LLC (PPS), a subsidiary of First Aviation Services Inc., is a world leader in propeller MRO for regional, corporate, and military aircraft. PPS holds FAA & EASA Propeller Class 1 and Class 2 Propeller Repair Station ratings for all Dowty, Hamilton, Hartzell and McCauley propellers. PPS is also a Hartzell authorized service center. PPS is the only facility in the world with FAA/EASA certification to overhaul all ATR and Dash 8 / Q400 propeller types, including the Hamilton 568F and Dowty R408 propeller. PPS also supports legacy propellers including the Hamilton 14SF/RF, Saab 340, Fokker 27/50/60, EMB-120 & DHC-6 platforms.