The Hellenic Civil Aviation Authority (HCAA) is moving forward with the upgrade of the national air traffic control system, activating a 126.17-million-euro project through a negotiated procedure without a prior tender with France’s Thales Las France SAS.
The decision concerns the upgrade of the HCAA’s National Data Processing System (DPS), which constitutes the core platform for air traffic management in the country. According to the tender documents, the contract includes the upgrade of the existing PALLAS 3G system to the new TopSky ATC One platform, as well as its integration with the new Athens terminal area approach system, Athens International Airport “Eleftherios Venizelos,” and the airports of Thessaloniki, Corfu and Rhodes.
The contract
The procedure has also received the approval of the Hellenic Single Public Procurement Authority (EADISY). The total contract value amounts to 126.17 million euros including VAT, while an optional extension right of up to five years, valued at approximately 40.5 million, is also provided. Thales has been invited to submit its offer by June 12, 2026, and must also provide a declaration of exclusivity regarding the rights to the required software.
The DPS upgrade is considered critical for the modernization of the country’s air navigation services, as the new system will support growing flight management requirements and meet European standards for safety and the digital transformation of airspace management.
The seven radars
At the same time, a decision by the HCAA board of directors removes from the project the upgrade of seven radars located in Kamara, Ymittos, Elliniko, Lefkada, Kythira, Pelion and Merenda, which are instead set to be replaced with entirely new systems.
According to the amended board decision, the choice of new procurement is considered preferable to continuous upgrades, particularly “in an environment of heightened cybersecurity requirements, regulatory compliance with EU and international regulations, and operational availability.”
In cost terms, based on Thales’ offer submitted in March 2025, the initial benchmark cost for upgrading the seven radars stood at 29.85 million (19.82% discount included). Subsequently, an additional 1.9 million amount was added for the radar on Merenda hill, which has been linked to the blackout incidents at the Athens airport.
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