Precision Airparts Support Services (PASS) is a company that manufactures aircraft components and accessories. Its products include gas turbine engines, outflow valves, vane axial fans, cabin pressure controllers, water separators, etc. The company offers maintenance, repair, and overhaul (MRO), non-destructive testing (NDT), structural fabrication, logistic support, engineering, and other services. PASS caters to the military and commercial sectors.