Direct the movement and spotting of aircraft ashore and afloat; operate, maintain, and perform organizational maintenance on ground-handling equipment used for moving and hoisting of aircraft ashore and afloat; supervise securing of aircraft and equipment; perform crash rescue, firefighting, crash removal, and damage control duties; perform duties in connection with launching and recovery of aircraft.

ETs are responsible for electronic equipment used to send and receive messages, detect enemy planes and ships, and determine target distance. They must maintain, repair, calibrate, tune, and adjust all electronic equipment used for communications, detection and tracking, recognition and identification, navigation, and electronic countermeasures.