Navy NEC · Engineering

749B Main Propulsion Steam Generating Plant Inspector

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.

Overview

A Main Propulsion Steam Generating Plant Inspector assesses material condition and readiness, diagnoses improper operating procedures and equipment failures, and recommends corrective measures. The inspector details repairs to boilers, steam plant components, and automatic pressure and temperature controls, evaluates water treatment and boiler flexibility programs, reviews records, and witnesses prescribed plant tests.

Core Skills

  • Combustion and feedwater control fault diagnosis
  • Boilerwater test and treatment program evaluation
  • Steam plant casualty corrective action planning
  • Maintenance record review and test witnessing

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.

Stationary Engineers and Boiler Operators

Diagnosing boiler and auxiliary equipment failures, evaluating water treatment, and recommending operating corrections directly support civilian steam plant operations.

How to prepare: Check the licensing authority for your target city or state to identify the license class covering the plant's equipment type and size. Some jurisdictions require licensure, usually involving experience requirements and a written exam, and moving jurisdictions may require another examination.

What the civilian work involves
  • Operate or tend stationary engines, boilers, and auxiliary equipment, such as pumps, compressors, or air-conditioning equipment, to supply and maintain steam or heat for buildings, marine vessels, or pneumatic tools.
  • Analyze problems and take appropriate action to ensure continuous and reliable operation of equipment and systems.
  • Observe and interpret readings on gauges, meters, and charts registering various aspects of boiler operation to ensure that boilers are operating properly.
Civilian tools and software (examples)
  • Building management system software

Power Plant Operators

Steam generating plant inspections, operating-procedure diagnosis, and pressure and temperature control troubleshooting transfer to monitoring boiler-based power generation equipment.

How to prepare: Take an introductory power plant operations course covering turbine-generator controls and electrical output regulation to build beyond steam generating equipment inspection.

What the civilian work involves
  • Control power generating equipment, including boilers, turbines, generators, or reactors, using control boards or semi-automatic equipment.
  • Take regulatory action, based on readings from charts, meters and gauges, at established intervals.
  • Monitor power plant equipment and indicators to detect evidence of operating problems.
Civilian tools and software (examples)
  • Computerized maintenance management system CMMS

Notes & Sources

Evidence for this guidance (4 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC 749B

    [1] NEC entry "749B - Main Propulsion Steam Generating Plant Inspector"; cached text line 17880; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Combustion and feedwater control fault diagnosis, Boilerwater test and treatment program evaluation, Steam plant casualty corrective action planning, Maintenance record review and test witnessing, Stationary Engineers and Boiler Operators (O*NET 51-8021.00), Power Plant Operators (O*NET 51-8013.00)

  2. O*NET: Stationary Engineers and Boiler Operators

    [2] O*NET 30.3 occupational data

    Supports: Stationary Engineers and Boiler Operators (O*NET 51-8021.00)

  3. Bureau of Labor Statistics: Stationary Engineers and Boiler Operators

    [3] How to Become a Stationary Engineer or Boiler Operator; Licenses, Certifications, and Registrations; page dated 2026-08-27, retrieved 2026-09-23

    Supports: Stationary Engineers and Boiler Operators (O*NET 51-8021.00)

  4. O*NET: Power Plant Operators

    [4] O*NET 30.3 occupational data

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

Defense contractor jobs for 749B

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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