The National Transportation Safety Board (NTSB) has taken decisive action to secure its digital investigation records after discovering that artificial intelligence was used to synthesize the voices of pilots killed in a fatal UPS plane crash. The incident occurred after unauthorized individuals utilized spectrogram files—visual representations of sound frequencies—found within the agency’s public docket system to reconstruct cockpit audio recordings.

While federal law strictly prohibits the public release of actual cockpit voice recordings, the NTSB’s docket system historically provides transparency by hosting extensive investigative data. In this instance, the inclusion of spectrogram files allowed tech-savvy users to combine visual sound data with publicly available transcripts. By employing AI-driven voice synthesis tools, these individuals were able to generate realistic, albeit fabricated, audio approximations of the pilots’ final moments, which subsequently circulated across social media platforms.

In response to the breach, the NTSB temporarily shuttered its online docket system to conduct a comprehensive security review. Although the portal has since been restored, the agency has opted to keep 42 specific investigation files, including the records for the UPS Flight 2976 crash in Louisville, Kentucky, restricted from public view. This event highlights the growing challenges regulatory bodies face in protecting sensitive investigative materials in an era where advanced AI tools can easily manipulate and repurpose technical data.