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1h ago

NTSB Pulls Public Docket After AI Recreates Pilots' Voices From Spectrogram

New AI methods can defeat long-standing legal protections for cockpit audio, forcing the agency to choose between transparency and privacy.

Fire and smoke mark where a UPS cargo plane crashed near Louisville Muhammad Ali International Airport on November 04, 2025 in Louisville, Kentucky. The fully fueled plane crashed shortly after takeoff with a shelter-in-place order issued for within 5 miles of the airport. (Photo by Stephen Cohen/Getty Images)
Image
The NTSB says individuals have used AI to animate the crash transcripts. A UPS MD-11F [Credit: Shutterstock/Austin Deppe]
Still image from a video showing a cargo plane taking off while fire engulfs a wing and the left engine having detached. The crash of UPS flight 2976 killed three pilots aboard the aircraft and killed a dozen more people on the ground, with 23 people being injured.

Overview

  • The NTSB said Friday it temporarily took its public docket system offline after people used a published spectrogram from the UPS Flight 2976 investigation to reconstruct audible approximations of the pilots' final moments and post them online.
  • The reconstruction used standard signal‑processing methods and AI tools that convert a spectrogram image back into sound, with observers saying techniques like the Griffin–Lim algorithm and code-assist models sped the process.
  • Federal law bars the NTSB from publicly releasing cockpit voice recordings to protect crew privacy and investigative integrity, and the agency stressed that the recreated audio violated those protections.
  • The NTSB is urging platforms to remove the posted reconstructions, has restored partial access to its site while keeping dozens of dockets closed for review, and has not set a date to fully reopen public files.
  • The episode highlights a new policy and technical dilemma for safety agencies: publishing visual evidence aids transparency but can now enable AI reconstructions that expose victims and complicate how platforms and regulators will control harmful content.