A jet engine mechanic is responsible for the maintenance of an aircraft engine and often disassembles the engine to inspect for wear, warping, cracks, or leaks. As a jet engine mechanic, you inspect all of the engine parts, including the turbine blades and cylinders, replace worn out or damaged parts, and repair and reassembles the engine as needed. Keeping a careful record of all repairs done to the jet engine is one of your main responsibilities. Other duties include servicing the aircraft and related apparatus by flushing the crankcase, cleaning screens, and lubricating parts.