Aviation Machinist's Mates (AD) maintain aircraft engines and their related systems, including the induction, cooling, fuel, oil, compression, combustion, turbine, gas turbine compressor, exhaust and propeller systems; preflight aircraft; conduct periodic inspections on engines and engine-related systems; field-test and adjust engine components, including fuel controls, pumps, valves and regulators; remove, repair and replace compressor and turbine blades and combustion chamber liners; preserve and depreserve engines, engine accessories and components; and supervise engine work centers.

Aviation Structural Mechanics (AM) maintain aircraft airframe and structural components flight surfaces and controls hydraulic and pneumatic control and actuating systems and mechanisms, landing gear systems, air conditioning, pressurization, visual improvement, oxygen and other utility systems, egress systems including seat and canopy ejection systems and components, fabricate and repair metallic and nonmetallic materials; perform aircraft daily, special, hourly, and conditional inspections, supervise operation of airframe work centers; maintain aircraft metallic and non-metallic structures including fuselages, fixed and moveable flight surfaces, tail booms, doors, panels, decks, empennages, and seats (except ejection seats); flight controls and related mechanisms; hydraulic power storage and distribution systems including main (primary and secondary), auxiliary (utility), and emergency systems; hydraulic actuating subsystems; landing gear systems including wheels and tires, brakes, and emergency systems; pneumatic power, storage and distribution systems; hoists and winches, wing and tail fold systems; launch and arresting gear systems; hydraulic component repair and test; and perform aircraft daily, special, hourly, and conditional inspections.

Fire Controlmen (FC) provide weapon direction systems employment recommendations; perform organizational and intermediate maintenance on digital computer equipment, subsystems, and systems; operate and maintain combat and weapons direction systems, surface-to-air and surfaceto-surface missile systems, and gun fire control systems at the organizational and intermediate level; inspect, test, align, and repair micro/minicomputers and associated peripheral equipment, data conversion units, data display equipment, data link terminal equipment, print devices, and system related equipment; perform analyses for detailed systems, computer programs, electronics, and electronic casualty control; and operate associated built-in and external test equipment; load, initialize, and run preprogrammed diagnostics, performance and testing routines for digital computer equipment, digital systems, digital subsystems, and overall combat systems.

Function as Plotters, Radiotelephone, and Command and Control internal communications talkers; maintain Combat Information Center (CIC) displays of strategic and tactical information; operate surveillance radars, Identification Friend or Foe (IFF) Systems, and associated equipment; interpret radar presentations, evaluate tactical situations, and make recommendations to superiors during watch conditions; apply current doctrine and procedures to CIC operations as specified by U. S. Navy Instructions and Joint/Allied/U. S. Navy publications; and apply current doctrine and procedures to radar navigation; provide technical information and assistance during Surface Warfare, Air Warfare, Submarine Warfare, Amphibious Warfare, Mine Warfare, Naval Surface Fire Support, and Search and Rescue operations; provide technical information and advice on capabilities, limitations, reliability, and operational readiness.