Factual error: The crash took place in 1987. When we hear about the American salvage company that was hired to find the wreckage, we see a scene of traffic in Washington, DC that has a model of Lincoln Town Car that was not produced until 1998.
Continuity mistake: Several times we see the Legacy jet from the outside. The windows are square. When we see them from the inside, they are oval. As a matter of fact, no jet has square windows. That mistake was learned with the crash of a de Havilland Comet in 1954. It had square windows which concentrated the strain on the skin of the plane, causing it to fail and crash.