The National Transportation Safety Board has temporarily restricted access to its online investigation records system after individuals used artificial intelligence to reconstruct cockpit audio recordings from publicly available visual data.

The federal agency, which investigates aviation accidents, typically releases spectrogram images as part of its public safety reports while keeping the actual audio recordings confidential. Spectrograms are visual representations of sound frequencies over time that are used in technical analysis.

Internet users discovered they could input these spectrogram images into AI systems to recreate approximations of the original cockpit voice recordings. This workaround effectively circumvented federal law that prohibits the NTSB from publicly disclosing cockpit voice recordings, which are considered sensitive for privacy and safety reasons.

The NTSB responded by temporarily blocking public access to its electronic docket system, which contains thousands of investigation documents. The agency has not indicated when normal access will be restored or how it plans to address the technical loophole.

Cockpit voice recordings are protected under federal regulations due to concerns about pilot privacy and maintaining open communication in aircraft. The recordings are typically only used internally for safety investigations and are not released to families of crash victims or the general public.

The incident highlights ongoing challenges regulators face as AI technology creates new ways to extract information from publicly available data that was previously considered effectively anonymous or protected.