The upgrade was to bring Austria's 15 Eurofighter Typhoons to the capability standard for Tranche 1 aircraft and involved equipping the fighters with enhanced hardware and software capabilities.
"We are pleased that this upgrade program has been completed in close cooperation with our customer," said Alberto Gutierrez, Eurofighter chief executive officer. "The Austrian Eurofighters are now on the highest technical and operational level for Tranche 1 aircraft and continue to deliver a substantial contribution to the air surveillance capabilities and national sovereignty of Austria."
The Eurofighter Typhoon is a twin-engine, canard-delta wing fighter operated by Germany, Austria, Britain, Italy, Austria and others.
Specific details of the upgrade, as well as the timeframe in which it was performed, were not disclosed.
Eurofighter said work on the Austrian jets was done in parallel with the aircrafts' daily operations by employees of the EADS-division, Cassidian, part of the consortium that produces the aircraft.