What role do flight data recorders play in investigating the Delta Flight 4819 crash?

Flight data recorders are crucial in revealing exactly what happened during the crash of Delta Flight 4819. Once removed and downloaded by the Transportation Safety Board in Canada, these devices will provide comprehensive details about the incident, including precise measurements of bank angles, touchdown speeds, and vertical speeds at impact. The recorders will also reveal information about the approach conditions, such as whether wind was affecting the aircraft and to what extent. This data collection enables investigators to reconstruct the accident sequence and determine causative factors, essentially 'telling the story' of what transpired during the critical moments of the flight.