Which sources are commonly used to reconstruct the flight path?

• A. Weather forecasts
• B. ATC transcripts, CVR, FDR data, radar tracks, and airworthiness documents.
• C. Passenger manifests
• D. Marketing materials

Answer: (B)

Reconstructing the flight path relies on objective, time-stamped data that records where the aircraft was and what actions were taken, providing a precise timeline of the journey.

ATC transcripts give exact routing instructions, clearances, and handoffs with time references, which helps place the aircraft within airspace at specific moments and verify the intended vs. actual route and altitudes.

The cockpit voice recorder and flight data recorder together supply both the crew’s actions and the aircraft’s performance. The CVR captures crew communications and potential acknowledgments of procedures, while the FDR records numerical flight parameters such as altitude, airspeed, heading, vertical speed, and engine data. This combination reveals what happened in real time and how the aircraft responded.

Radar tracks visually confirm the aircraft’s position, speed, and altitude over time, providing a concrete trajectory that can be cross-checked against other sources for consistency and to fill gaps.

Airworthiness documents provide essential background about the aircraft’s configuration, weight and balance, and maintenance status, which influence how the aircraft would perform along a given path and help explain any deviations or performance limits observed in the data.

Weather forecasts or conditions, while relevant to understanding decisions and constraints, do not themselves record the actual flight path. Passenger manifests and marketing materials do not contain the technical data needed to reconstruct the trajectory.