Data recovered from the aircraft shows that one pilot warned the other about "excessive speed" in the moments before a cargo plane operating on behalf of Amazon crashed, killing people on board.
The recordings captured an uneven exchange between the two pilots even as audible alarms sounded in the cockpit. The warning and the alarm sequence have become a focus for investigators seeking to establish what role crew actions and aircraft systems played in the run-up to the impact.
Authorities said they are analysing the flight data and other information from the aircraft to build a timeline of events. The review aims to clarify how the speed warning and the alerts were handled, and whether technical or procedural factors contributed to the pilots’ responses.
The crash, described as deadly, has prompted scrutiny of operational and safety practices surrounding cargo flights. Investigators are expected to publish more detailed findings as their examination of the data continues and they interview relevant personnel.
Regulatory bodies and the operator of the aircraft have not yet released full accounts of the causes. The investigation remains ongoing as experts piece together the sequence of events that led to the accident.