A professional who repairs and maintains propulsion engines and other engines and engine parts aboard ship. Respnsibilities include:

• Examines engine equipment, such as pumps, circulators, condensers, and steering engines to locate malfunctions, and dismantles and repairs defective equipment, using handtools and power tools.
• Makes engine replacement parts, such as slide valves, stay rods, and bolts, using metalworking machinery.
• Stands engineroom watch during specified periods, observing gauges to determine that operating conditions, such as temperatures, steam pressure, water and oil levels, and revolutions per minute are within specified ranges.
• Adjusts controls to maintain specified operating conditions.
• Records gauge readings in engineering log.
• Must be licensed by U.S.
• Coast Guard.