The NTSB temporarily disabled its online docket system on May 21 after individuals used AI tools to reconstruct cockpit voice recordings from a spectrogram released in the UPS Flight 2976 investigation. The agency stated that advances in image recognition and computational methods enabled approximations of audio from sound spectrum imagery in the November 4 2025 crash of the MD-11F cargo aircraft that killed three pilots and twelve people on the ground citing the prohibition on releasing cockpit audio under federal law. A 1990 statute bars public disclosure of cockpit voice recorder data following the 1988 Delta Air Lines Flight 1141 incident with NTSB procedures including signed nondisclosure agreements restricted access and manual transcription as noted by former chairman Robert Sumwalt. The spectrogram from the May 19-20 hearing was processed via the Griffin-Lim algorithm published in the 1984 paper by Daniel Griffin and Jae Lim resulting in audio clips shared on X and Reddit.