Sigma Aerospace
Avionics Support


At Sigma Aerospace, we are committed to providing quality in-house avionic servicing and support.


We are equipped to carry out inspections, repairs, overhauls, fault diagnosis, warranty repairs, new installations and design recommendations.


Our Avionic and Electrical Repair Overhaul and Upgrade Capabilities include:

  • Communication Systems
  • Engine Instruments
  • Flight Systems
  • Navigation Systems
  • Autopilot Systems
  • GPS Systems
  • Aircraft Battery Servicing
  • In Flight Entertainment Systems


The avionics team at Sigma Aerospace handle aircraft instrument calibration inspections I.A.W. the latest approved data and procedures.


Overhaul and capacity testing of batteries, emergency power and lighting unit power packs can also be performed. 

We can also install, modify, repair and test your electrical, radio, navigation and auto pilot systems.


The overhaul, repair and testing of airframe, engine electrical and instrument components, including landing lights, strobe power supplies and many others is also capable at our newly designed modern avionic and electrical facility.


Sigma Instruments offers testing, sales, and the servicing / overhaul of nearly all categories of aircraft instrument components and aircraft electrical components. We have provided quality service to the aviation community since 1965. We service Directional gyros, attitude gyros, turn coordinators, altimeters, airspeed indicators and many more. We deal with many instrument manufacturers including SigmaTek, United, A.I.M., Allied Signal, R.C. Allen, A.I.D., and E.G.C. just to name a few.

We have the experience and capability to overhaul many types of aircraft instrumentation from a variety of manufacturers. Our highly skilled technicians have over 40 years experience repairing and overhauling aircraft instruments and are familiar with both newer and older model equipment. We can offer you a quick turn around in most cases so you can spend more time flying.

P: +61 2 6760 7644
Hangar 7, Tamworth Airport
Tamworth NSW AUSTRALIA 2340
P: +61 7 3860 5780
Unit 19/67 Bancroft Road
Pinkenba QLD AUSTRALIA 4008
P: 0403 930 753
4/18 Industry Drive
Tweed Heads NSW Australia 2486
Website maintained by Tamworth IT