Over a third of the USA’s air traffic control systems are in an “unsustainable” state, and the FAA’s decades-long project to upgrade them is not going well.
That concerning situation was described on Tuesday by the United States Government Accountability Office (GAO) in testimony to the House committee on transportation and infrastructure’s subcommittee on aviation.
The auditors at the GAO examined 138 ATC operations and found that 51 (37 percent) were considered “unsustainable” by the FAA and 54 (39 percent) were “potentially unsustainable.”
The FAA deployed six of the ATC systems 60 years ago, and 40 are 30 years old. 72 have been in operation for over two decades. Spare parts are scarce, and trained personnel to maintain them are becoming harder to find.
“The FAA’s reliance on a large percentage of aging and unsustainable or potentially unsustainable collection of ATC systems introduces risks to the FAA’s ability to ensure the safe, orderly, and expeditious flow of air traffic,” said Heather Krause, the GAO’s managing director of physical infrastructure, in testimony to US House reps.
The FAA has a plan to address this, the Next Generation Air Transportation System (NextGen) project, but it’s not going well. The project started in 2007 and was due to conclude around 2030.
Krause’s view of the project’s progress was not flattering.
“We determined that as of May 2024, FAA had 17 systems that were especially concerning. Of these 17 systems, the investments for 13 were not planned to be completed for at least six years, and in some cases were not to be completed for at least 10 years,” she testified. Four systems that need work are yet to become the subject of upgrade plans.
In 2023 and 2024 the GAO recommended the FAA should “address shortcomings in the agency’s management of NextGen and ATC system investments.” Developing a risk mitigation plan for NextGen was one of those recommendations, but that plan hasn’t been developed.
The FAA has had some wins. Past GAO recommendations to “conduct root cause analysis on programs that exceed baselines and managing investments in segments” have been met. The administration also delivered a project to modernize communications systems in ATC towers two years ahead of schedule.
A 2018 US government shutdown and the COVID-19 pandemic created unavoidable delays to other efforts.
However, the aviation regulator blew a deadline to connect the 20 FAA centers that manage flights in transit between airports by four years.
Elon isn’t helping
The subcommittee on aviation isn’t the only entity in Washington being asked to consider safety in the skies this week.
Senator Edward Markey (D-MA) wrote [PDF] to the heads of the Senate Committee on Commerce, Science, and Transportation to ask what is being done to improve aviation safety. He cited criticism from President Trump’s éminence grease Elon Musk about the existing FAA communications setup, saying SpaceX billionaire’s comments left air travelers concerned about safety grounds and seemed motivated by a desire to sell his Starlink satellite broadband kit to the agency.
US Air Traffic Control system vulnerable to hackers
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“Although the FAA’s information technology systems need modernization, Musk’s alarmist rhetoric appears extreme,” Markey wrote.
“If he has discovered new vulnerabilities in the FAA’s Air Traffic Control system, the Committee should know about such information immediately. If Musk cannot provide evidence of his claims, it raises serious questions about whether he is using his role as a senior government official to enrich his company SpaceX, currently competing for FAA contracts.”
The FAA is reportedly considering switching its $2.4 billion contract for NextGen communications from Verizon to Starlink. Musk alleged the Verizon system is “breaking down” and that the FAA is “is single digit months to catastrophic failure.”
He later admitted he’d mistaken Verizon’s network for another FAA network provided by defense contractor L3Harris. ®
