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Navy NEC · Aviation

I41A A/F 37T-21 Aircraft Engine Components Test Stand

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

An A/F 37T-21 Aircraft Engine Components Test Stand technician performs intermediate-level maintenance on aircraft engine-driven accessories and related equipment. The work covers generators, generator drive systems, aircraft electrical components, and the A/F37T-21 test stand, with dynamic testing capability.

Core Skills

  • Aircraft generator and drive system maintenance
  • Dynamic testing of aircraft electrical components
  • A/F37T-21 component test stand 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.

Avionics Technicians

Intermediate-level maintenance and dynamic testing of aircraft generators, drive systems, and electrical components transfer directly to electrical component bench testing and repair.

How to prepare: Complete hands-on bench troubleshooting training using circuit testers, oscilloscopes, and voltmeters to prepare for civilian aircraft electrical component repair work.

What the civilian work involves
  • Test and troubleshoot instruments, components, and assemblies, using circuit testers, oscilloscopes, or voltmeters.
  • Adjust, repair, or replace malfunctioning components or assemblies, using hand tools or soldering irons.

Notes & Sources

Evidence for this guidance (2 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC I41A

    [1] NEC entry "I41A - A/F 37T-21 Aircraft Engine Components Test Stand"; cached text line 6875; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Aircraft generator and drive system maintenance, Dynamic testing of aircraft electrical components, A/F37T-21 component test stand maintenance, Avionics Technicians (O*NET 49-2091.00)

  2. O*NET: Avionics Technicians

    [2] O*NET 30.3 occupational data

    Supports: Avionics Technicians (O*NET 49-2091.00)

Defense contractor jobs for I41A

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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