Technical Support Squadron is one of the two non-flying squadrons at the 5th Aviation Regiment. The Squadron is responsible for maintenance and supply support to the flying squadrons, maintenance of the Regiment’s ground vehicle and weapon fleets and manning support to the flying squadron maintenance elements. The Squadron is comprised of four troops, Aircraft Repair Troop, Ground Equipment Repair Troop, Logistics Troop and Headquarters Troop. In addition to these Troops, there are also a number of civilian personnel who work within the Squadron. Each of these troops has an area of responsibility that contributes to the completion of the Squadron’s responsibilities.

Aircraft Repair Troop. Aircraft Repair Troop forms the bulk of Technical Support Squadron and is responsible for maintenance and manning support to the flying squadrons. The Troop is made up of a number of sections based on trade groups. The five sections of the Troop are Aircraft Life Support Equipment, Aircraft Structural Repair, Avionics, Aircraft Technicians, Non Destructive Testing and the Headquarters element. There are also a number of civilians working in Aircraft Repair Troop. Their function is to supplement the Army maintenance capability. The roles of the trade sections within Aircraft Repair Troop are as follows:

Aircraft Technicians are responsible for carrying out maintenance on the aircraft engines and the airframe. A typical day for an aircraft technician might include installing an engine, removing the main rotor head or conducting maintenance on the aircraft drive train.

Avionics Technicians are responsible for maintaining aircraft instrumentation and all things electronic. A typical day for an avionics technician might include removing and installing a pilots display unit, repairing a damaged wiring loom or conducting maintenance on the pitot-static system.

Aircraft Structural Fitters are responsible for carrying out maintenance on the actual aircraft structure. They are trained as metal workers and a typical day might include repair of aircraft panels, fabrication of aircraft components or repairs to the aircraft framework.

Aircraft Life Support Equipment Fitters are responsible for maintenance of items such as seats, helmets and life rafts. A typical day might include fitting a helmet to a pilot, carrying out maintenance on aircrew and passenger seats or servicing a life raft.

The Non Destructive Testing Cell consists of two RAAF corporals who are responsible for testing airframe and engine components to determine if there are any flaws or cracks in the metal.

Ground Equipment Repair Troop is the other technical troop within Technical Support Squadron. The 5th Aviation Regiment has the largest vehicle fleet of any unit in the Army and Ground Equipment Repair Troop is responsible for its maintenance. The Troop is also responsible for maintaining the unit’s weapon fleet. The Troop consists of tradesmen and women in the fields of vehicle mechanic, electrician and fitter/armourer.

Vehicle mechanics carry out maintenance on the unit’s vehicle fleet, including Mack Trucks, Unimog Light Trucks and Landrover 110 four wheel drives. A typical day might include carrying out scheduled servicing or unscheduled repairs on any of these vehicles.

Electricians are responsible for establishing and maintaining the Regiment’s electrical supply in the field. They are also responsible for auto-electric repairs.

Fitter-armourers are responsible for maintaining the unit’s weapons and carrying out any miscellaneous metal work tasks including fabrication and repairs.

Logistics Troop. Logistics Troop is responsible for the supply of aircraft parts to the Regiment. The Troop's role is particularly important as most repairs conducted on aircraft involve the replacement of parts, thus Logistics Troop are on call 24 hours a day to receive and dispatch aircraft parts around Australia or wherever the Regiment is deployed.

Headquarters Troop. Headquarters Troop consists of the command element, the Electrical Mechanical Engineering Operations section and the Maintenance Control Section.

The command element consists of the Squadron Officer Commanding, the Squadron Second in Command and the orderly room. Electrical Mechanical Engineering Operations section is responsible for managing the long-term aircraft maintenance stagger. This important as it ensures that all the aircraft in the fleet don’t require deep level maintenance at the same time. This section also acts as the liaison between the unit technical elements and external agencies. Maintenance Control Section is responsible for auditing the paperwork associated with aircraft maintenance. Aircraft and avionics technicians man this section on a rotational basis.