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Navy NEC · Engineering

U61A LHA-6 (AMERICA)/LHD-8 (MAKIN ISLAND) Class Ship Machinery Control System (MCS) Maintainer

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

A Ship Machinery Control System Maintainer performs advanced organizational or intermediate maintenance on the machinery control systems aboard LHA-6 and LHD-8 class ships. This maintainer uses built-in tests, technical manuals, and maintenance documentation to service lowest repairable units such as circuit cards, power supplies, batteries, relays, and fiber optic cable connectors.

Core Skills

  • Fault isolation using built-in test data
  • Circuit card and power supply maintenance
  • Fiber optic cable connector maintenance

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.

Telecommunications Equipment Installers and Repairers, Except Line Installers

Maintaining MCS circuit cards, power supplies, and fiber optic connectors using built-in test data provides a foundation for telecommunications equipment troubleshooting.

How to prepare: Complete a hands-on telecommunications equipment course covering circuit fault isolation and post-repair testing with external test equipment.

What the civilian work involves
  • Test circuits and components of malfunctioning telecommunications equipment to isolate sources of malfunctions, using test meters, circuit diagrams, polarity probes, and other hand tools.
  • Test repaired, newly installed, or updated equipment to ensure that it functions properly and conforms to specifications, using test equipment and observation.

Industrial Machinery Mechanics

Shipboard machinery-control maintenance to the lowest repairable unit transfers to diagnosing and replacing faulty industrial equipment components.

How to prepare: Take a hands-on industrial maintenance course covering mechanical disassembly, lubrication, and reassembly to broaden beyond the documented electronic control-system work.

What the civilian work involves
  • Repair or maintain the operating condition of industrial production or processing machinery or equipment.
  • Repair or replace broken or malfunctioning components of machinery or equipment.

Notes & Sources

Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC U61A

    [1] NEC entry "U61A - LHA-6 (AMERICA)/LHD-8 (MAKIN ISLAND) Class Ship Machinery Control System (MCS) Maintainer"; cached text line 12415; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Fault isolation using built-in test data, Circuit card and power supply maintenance, Fiber optic cable connector maintenance, Telecommunications Equipment Installers and Repairers, Except Line Installers (O*NET 49-2022.00), Industrial Machinery Mechanics (O*NET 49-9041.00)

  2. O*NET: Telecommunications Equipment Installers and Repairers, Except Line Installers

    [2] O*NET 30.3 occupational data

    Supports: Telecommunications Equipment Installers and Repairers, Except Line Installers (O*NET 49-2022.00)

  3. O*NET: Industrial Machinery Mechanics

    [3] O*NET 30.3 occupational data

    Supports: Industrial Machinery Mechanics (O*NET 49-9041.00)

Defense contractor jobs for U61A

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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