How does video evidence assist investigators in aviation accident investigations?

Video evidence plays a vital role in aviation accident investigations by helping investigators determine both the aircraft's behavior prior to touchdown and what happened after landing. As explained by Gregory Feith, a former NTSB Air Safety Investigator, these visual records provide crucial insights into the entire landing sequence. The examination of what went wrong during incidents like Delta Flight 4819's crash landing at Toronto Pearson Airport is significantly enhanced through video analysis. This evidence allows investigators to reconstruct the accident timeline and observe aircraft movements that might not be captured by other data sources, making it a crucial component in the comprehensive investigation process.