The National Transportation Safety Board has released their final report for the 2016 Woodmore bus crash that claimed the lives of six children.

The report is paired with another bus crash from Maryland.

READ MORE |   Woodmore Bus Crash     

In the 119 page report, the NTSB "concludes that the Chattanooga school bus passengers were at risk due to the precrash vehicle motions that threw them from their seating compartments prior to the bus striking the utility pole and during the rollover sequence, rendering compartmentalization ineffective."

On-board video cameras in other school bus crashes were used, along with standard investigative and forensic techniques to determine the causes of the crash and how the bus's occupants were injured.

The NTSB said that the Woodmore bus crash had three main phases:

  • Precrash high-speed swerving and counter-steering motions that threw passengers from their seating compartments.
  • The school bus striking a utility pole while beginning to overturn toward the passenger side.
  • Rollover into a tree, which abruptly ended the vehicle movement and resulted in severe intrusion into the school bus interior

The NTSB said in the report that "to provide the best protection for all occupants of large school buses—and to make these buses even safer—the remaining step is for each state to require the installation of lap/shoulder belts in all new large school buses."