Performs a wide variety of duties necessary to assure the proper functioning of aircraft electrical, electronic, communication, navigation, flight instruments and instrumentation systems or packages. Fabricates, constructs, installs, tests, adjusts, maintains, repairs or replaces any components, panels or sections of the above systems or packages. Lays out and installs a variety of tubing and/or tubing systems for instrumentation work. May be assigned to install, adjust, and maintain control tower or other fixed base or mobile communications equipment. Makes 'in flight tests' as necessary. Must obtain any additional licenses or permits required by the government to meet government regulations.