12/07/2025
According to the preliminary report, the aircraft achieved a maximum recorded airspeed of 180 knots IAS at approximately 08:08:42 UTC. Immediately after this, the Engine 1 and Engine 2 fuel cutoff switches transitioned from "RUN" to "CUTOFF" with a one-second gap.
The cockpit voice recording captured one pilot asking why the cutoff occurred, with the other pilot responding that they did not do so. CCTV footage also showed the Ram Air Turbine (RAT) deploying during the initial climb immediately after liftoff.
The aircraft was destroyed upon impact with buildings on the ground, followed by a fire. A total of five buildings were impacted, suffering major structural and fire damage. The wreckage was distributed over an area of approximately 1000 ft×400 ft.
Both Enhanced Airborne Flight Recorders (EAFRs) were recovered. Data from the forward EAFR was successfully downloaded, containing approximately 49 hours of flight data and 2 hours of audio, including the event flight. The aft EAFR was substantially damaged, and its data could not be downloaded through conventional means.
The investigation is being conducted by the Aircraft Accident Investigation Bureau (AAIB). The report states that the sole objective of the investigation is the prevention of future accidents and incidents, and not to apportion blame or liability.
At this preliminary stage, there are no recommended actions for B787-8 and/or GE GEnx-1B engine operators and manufacturers. The investigation is ongoing, with further evidence, records, and information being reviewed and examined.
