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Report: Greek airspace blackout caused by old systems and not cyberattack

Investigators say that an eight-hour radio blackout at Greek airports last week, which forced authorities to clear airspace, was partially due to outdated communication systems. The issue revealed infrastructure gaps in this key tourist destination.

A high-ranking government official resigned after the report of the investigative panel on Wednesday.

On January 4, air traffic controllers lost touch with the majority of planes, which included dozens headed for Greek airports. Radio frequencies were also replaced by static.

Experts in aviation said that the incident was unprecedented for a country in southern Europe.

The key Telecom Infrastructure Based on Outdated Technology

The report of the five-member investigation committee said that the cause of the outage is still unclear. Multiple systems went out of sync, leading to a scramble of communications between the airport towers and the planes.

In response, a transport ministry official stated that Greece's system was in line with EU Standards. However, the ministry has implemented an upgrade plan which is expected to be complete in 2028.

The unions have called for upgrades since years and say that the system is unsafe, particularly in light of the tourism boom, with millions of tourists flying to Greece each year. They said that the report vindicated their concerns on Wednesday.

The AVIATION AUTHORITY'S GOVERNOR RETIRES

In a statement released by the Greek transport ministry, George Saounatsos resigned as governor of Civil Aviation Authority on Wednesday. The current deputy governor George Vagenas will fill in until a replacement is appointed.

The report stated that, while the incident was a "low-risk" one in terms of safety for flights, the Civil Aviation Authority’s voice communication system and the critical supporting telecom infrastructure are based on outdated technology.

The report was submitted to the Transport Ministry and published late Tuesday. It stated that the infrastructure no longer has the support of manufacturers and is not operationally guaranteed.

The report stated that the Greek telecom provider OTE has been warning the civil aviation authority since 2019 about the need for new circuits in its systems. It also recommended upgrading transceivers, among other changes.

The report also recommended the creation of a crisis response mechanism between OTE and the Civil Aviation Authority. Reporting by Renee Maltezou, Editing by Sharon Singleton & Bernadette Baum

(source: Reuters)