Skill in troubleshooting, diagnosing defects, certifying, conducting bench and operational checks, disassembly, repairing, modifying, testing, cleaning, assembly and installation of turboprop engine and propeller systems, sub-systems and components such the integrated synchrophasing system, reduction gear box, torque meter assembly, fuel scheduling system and electrical components and control assemblies. Modifies engines, propellers, auxiliary power units, and components in accordance with Time Compliance Technical Orders (TCTO) directives; removes and installs engine quick change kits; prepares engines for installation and installs engine and propeller assemblies on aircraft.