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Navy Rating · Engineering

GSM Gas Turbine System Technician Mechanical

Current service use not established

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

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Overview

A Gas Turbine Systems Technician, Mechanical operates, repairs, replaces, and maintains the mechanical components of gas turbine engines. This technician performs organizational and intermediate maintenance on gears, shafting, controllable pitch and reversible propellers, assigned auxiliary equipment, and propulsion control systems.

Minimum ASVAB: VE+AR+MK+AS 200 or VE+AR+MK+AO 205

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-19

Program scope has not been reviewed.

Policy applicability and coverage of the program's score routes have not been reviewed. Shown-route arithmetic is not an eligibility decision.

Source: milpersman-1306-618-rating-list-2026-04 (source date 2026-04). Policy applicability has not been established.

See if you would hit this score: free ASVAB practice test

Core Skills

  • Propulsion gear and shafting maintenance
  • Controllable pitch and reversible propeller maintenance
  • Fuel and lubricating oil system maintenance
  • Shipboard propulsion control system 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.

Maintenance and Repair Workers, General

Repairing and replacing turbine mechanical components, propulsion machinery, and auxiliary equipment transfers directly to machinery-focused maintenance work.

How to prepare: Build a work-sample summary of mechanical repairs and component replacements, matching each example to the equipment named in a prospective employer's maintenance opening.

What the civilian work involves
  • Perform routine maintenance, such as inspecting drives, motors, or belts, checking fluid levels, replacing filters, or doing other preventive maintenance actions.
  • Inspect, operate, or test machinery or equipment to diagnose machine malfunctions.
  • Repair machines, equipment, or structures, using tools such as hammers, hoists, saws, drills, wrenches, or equipment such as precision measuring instruments or electrical or electronic testing devices.

Power Plant Operators

Operating shipboard gas turbine machinery, auxiliary equipment, and propulsion controls provides relevant experience for turbine-based power plant operations.

How to prepare: Take a power-generation operations course covering generator output control and plant startup and shutdown procedures to bridge from ship propulsion to electricity production.

What the civilian work involves
  • Control power generating equipment, including boilers, turbines, generators, or reactors, using control boards or semi-automatic equipment.
  • 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.
Civilian tools and software (examples)
  • Computerized maintenance management system CMMS

Training & Development

Choose credentials for your target role. COOL funding markers describe program listings, not a guarantee of eligibility or funding.

Career Growth

  • Certified Maintenance and Reliability Professionals (CMRP)

    Develop and demonstrate broader maintenance and reliability knowledge beyond individual equipment repairs.

    Eligibility and preparation: No education or work-experience minimum; candidates must not have sat for the exam within the preceding six months.

    For: Maintenance and Repair Workers, General

Notes & Sources

Evidence for this guidance (5 documents)
  1. NAVPERS 18068F Vol I (NEOCS, Jan 2026 edition): GAS TURBINE SYSTEMS TECHNICIAN (MECHANICAL) (GSM)

    [1] Rating chapter "SCOPE OF RATING"; cached text line 41691; NAVPERS 18068F Vol I, 2026-01 edition

    Supports: Propulsion gear and shafting maintenance, Controllable pitch and reversible propeller maintenance, Fuel and lubricating oil system maintenance, Shipboard propulsion control system operation, Maintenance and Repair Workers, General (O*NET 49-9071.00), Power Plant Operators (O*NET 51-8013.00)

  2. O*NET: Maintenance and Repair Workers, General

    [2] O*NET 30.3 occupational data

    Supports: Maintenance and Repair Workers, General (O*NET 49-9071.00)

  3. O*NET: Power Plant Operators

    [3] O*NET 30.3 occupational data

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

  4. COOL credential mapping: Certified Maintenance and Reliability Professionals (CMRP)

    [4] GSM cached COOL credential feed

    Supports: Certified Maintenance and Reliability Professionals (CMRP)

  5. Society for Maintenance and Reliability Professionals: CMRP eligibility

    [5] Eligibility; retrieved 23 September 2026

    Supports: Certified Maintenance and Reliability Professionals (CMRP)

Defense contractor jobs for GSM

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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