Aerospace and Defense, Aviation Industry, Avionics, Blueprints, Corporate Policies, Electrical Wiring, Equipment Maintenance/Repair, Explosives, FCC (Federal Communications Commission), Federal Aviation Administration (FAA), General Radiotelephone Operator License (GROL), Hazardous Materials/Substances, Heavy Equipment/Vehicles, Home Inspections, Lift/Move 50 Pounds, Machine Tool, Manual Dexterity, Mentoring, Oscilloscope, Publications, Regulations, Schematics, Secret Clearance, Soldering, Technical Drawing, Test Equipment, Testing, United States Department of Defense (DoD), United States Military