A professional who tests performance of new and overhauled aircraft engines, such as turboprop, turbofan, turbojet, and cylinder-type, and interprets test data. Respnsibilities include:

• Positions or directs other workers in positioning engine on test stand, using hoist or overhead crane.
• Connects oil and fuel lines, instruments, controls, and engine accessories, such as generators, magnetos, and fuel injectors, using handtools.
• Connects testing instruments, such as dynamometers and manometers, to engine.
• Starts and operates engine for specified time at various speeds.
• Reads and records test data, such as speed, temperature, oil pressure, fuel consumption, and exhaust pressure.
• Calculates performance of engine at various speeds, using test data, standard formulas, computer or calculator.
• Signs off tested engines as ready for service or indicates reasons for rejection based on analysis of test data.
• Must be licensed by or perform work under licensure of Federal Aviation Administration.
• May operate computerized test equipment to enter, retrieve, and compute test data and be designated Test Cell Technician.