The US Federal Aviation Administration has set a formal deadline to eliminate floppy disk technology from its air traffic control systems by 2028, according to a report published early this week by Reuters and flagged on Hacker News. The agency confirmed that floppy disks — the 3.5-inch magnetic storage medium that reached peak commercial adoption in the 1990s — remain embedded in operational systems managing aircraft separation and routing across American airspace.
The FAA has not disclosed precisely how many systems or facilities still rely on the format, but the agency's acknowledgment of a phased retirement plan through 2028 confirms the technology is not incidental. Similar legacy dependencies have surfaced at aviation authorities in other countries in recent years, suggesting the FAA's situation reflects a broader pattern in safety-critical infrastructure rather than an isolated American anomaly.
The agency's modernization effort falls under its longer-running NextGen program, which has been attempting to shift air traffic control from radar-based to satellite-based navigation systems for over a decade. That program has faced repeated cost overruns and schedule delays, which provides context for why hardware-level dependencies like floppy disks have persisted far beyond their commercial lifespan.
What rarely gets coverage in mainstream reporting is what this reveals about the operational logic of safety-critical government infrastructure: systems are frequently frozen at the technology level present when they were last certified, because recertification is expensive, time-consuming, and introduces its own failure risk. Air traffic control software certified in the late 1980s or early 1990s may have been written to interface directly with floppy disk I/O at the hardware level, meaning replacement isn't a simple swap — it requires revalidating the entire software stack against FAA safety standards. This same dynamic applies to water treatment SCADA systems, nuclear plant instrumentation, and dam control infrastructure across the country, most of which are similarly frozen on hardware generations that are no longer manufactured or supported. The gap between "still working" and "still supportable" is where systemic fragility accumulates quietly, and the FAA announcement is a rare public data point on how wide that gap can grow before an agency formally acts.
