Is 5939 (Aviation Communication Systems Technician) a Good MOS?

AIT / Training

16 weeks

Training Location

NATTC Pensacola, FL

Career Field

Electronics Maintenance

What the Recruiter Says

You'll maintain the communication and navigation systems on Marine Corps aircraft — the radios, satellite links, IFF transponders, and crypto gear that pilots depend on to talk, navigate, and identify friend from foe. Aviation electronics is one of the most technically demanding fields in the Marine Corps, and the skills translate directly to civilian avionics careers with airlines, defense contractors, and the FAA.

What It's Actually Like

You fix radios in aircraft. That sounds simple until you realize the radio suite in a single Marine helicopter or fighter includes UHF, VHF, HF, SATCOM, IFF, TACAN, and cryptographic systems — each with its own set of technical manuals, test equipment, and failure modes. Training at Pensacola is long and academically demanding. You will learn electronics theory, circuit analysis, and system-specific troubleshooting before you ever touch a real aircraft. In the fleet, your life revolves around the flight schedule. Aircraft need to be up for flights, and if a comm system is down, you are the one staying late to fix it. You will become intimately familiar with technical manuals, multimeters, oscilloscopes, and the art of tracing a fault through wiring diagrams. The work is mostly indoors in hangars and avionics shops, which is a quality-of-life plus. Civilian translation is excellent — avionics technicians at airlines start around $60-70K and experienced techs clear $90K+. Get your FCC General Radiotelephone Operator License and your A&P if you can. Defense contractors like L3Harris, Raytheon, and Northrop Grumman actively recruit military avionics techs.