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Navy NEC · Engineering

U23A MCM Propulsion Technician

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

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Overview

The MCM Propulsion Technician operates and maintains Isotta Franchini diesel engines used for marine propulsion or generator service. This technician also operates and maintains the SOLAR T-1302S-28AA Gas Turbine Generator set aboard MCM class ships.

Core Skills

  • Isotta Franchini propulsion and generator engine maintenance
  • SOLAR T-1302S-28AA gas turbine generator operation

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Motorboat Mechanics and Service Technicians

Operating and maintaining Isotta Franchini marine propulsion diesel engines transfers directly to marine engine service work.

How to prepare: Seek hands-on service training for the civilian marine diesel engine brands used by a target repair shop.

What the civilian work involves
  • Start motors and monitor performance for signs of malfunctioning, such as smoke, excessive vibration, or misfiring.
  • Document inspection and test results and work performed or to be performed.
  • Perform routine engine maintenance on motorboats, such as changing oil and filters.
Civilian tools and software (examples)
  • Engine diagnostic scanners

Power Plant Operators

Operating diesel engines in generator service and the SOLAR gas turbine generator set provides relevant experience for civilian generating-equipment operation.

How to prepare: Take practical training in civilian generator controls, including phase, frequency, and voltage matching.

What the civilian work involves
  • Control generator output to match the phase, frequency, or voltage of electricity supplied to panels.
  • Monitor power plant equipment and indicators to detect evidence of operating problems.
  • Start or stop generators, auxiliary pumping equipment, turbines, or other power plant equipment as necessary.

Notes & Sources

Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC U23A

    [1] NEC entry "U23A - MCM Propulsion Technician"; cached text line 11669; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Isotta Franchini propulsion and generator engine maintenance, SOLAR T-1302S-28AA gas turbine generator operation, Motorboat Mechanics and Service Technicians (O*NET 49-3051.00), Power Plant Operators (O*NET 51-8013.00)

  2. O*NET: Motorboat Mechanics and Service Technicians

    [2] O*NET 30.3 occupational data

    Supports: Motorboat Mechanics and Service Technicians (O*NET 49-3051.00)

  3. O*NET: Power Plant Operators

    [3] O*NET 30.3 occupational data

    Supports: Power Plant Operators (O*NET 51-8013.00)

Defense contractor jobs for U23A

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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