Airplane Power Plant Mechanic (684) Enlisted Personnel

In connection with the inspection maintenance, and repair of airplanes, observes operation of airplane power plants and makes adjustments necessary to proper functioning.
Diagnoses power plant malfunctioning. Adjusts and repairs such features of power plant as carburetors, superchargers, injectors, fuel and oil pumps, and ignition units. Makes unit replacements of defective power plant parts. Supervises and assists in removal and installation of airplane engines. makes required ground tests of airplane power plants.