A Bombardier Challenger 300 diverted March 3 to Bradley International Airport in Windsor Locks, Conn., after experiencing turbulence in flight. NBC Connecticut via AP hide caption
National Transportation Safety Board
This week, workers continued to clean up the derailed tank cars in East Palestine following the Feb. 3 crash. Matt Freed/AP hide caption
Here's the most thorough explanation yet for the train derailment in East Palestine
People pray outside Ride the Ducks, an amphibious tour operator involved in a 2018 boating accident on Table Rock Lake near Branson, Mo. Charlie Riedel/AP hide caption
The self-driving Uber SUV that struck pedestrian Elaine Herzberg on March 18, 2018, in Tempe, Ariz. Tempe Police Department via AP hide caption
This Ethiopian Airlines Boeing 737 Max 8, seen last Saturday, is one of those grounded following the crash that killed 157 people. Mulugeta Ayene/AP hide caption
Firefighters work in the driveway of a house damaged in a deadly plane crash Sunday in Yorba Linda, Calif. Officials say at least five people died, including the pilot and four people who were in the house. Alex Gallardo/AP hide caption
An amphibious boat is seen at Ride The Ducks on July 20, in Branson, Mo. On Friday, the National Transportation Safety Board released a preliminary report of video captured in the minutes leading up to the deadly accident. Michael Thomas/Getty Images hide caption
A vehicle drives by the spot where an Uber self-driving vehicle struck and killed a pedestrian earlier this year in Tempe, Ariz. The National Transportation Safety Board released a preliminary report Thursday on the collision. Chris Carlson/AP hide caption
An aerial view of the site in Cayce, S.C., where an Amtrak passenger train (bottom right) slammed into a CSX freight train early Sunday morning. At least two Amtrak crew members were killed and more than 100 people injured, authorities said. Jeff Blake/AP hide caption
A photo provided by the Indiana State Police shows the wreckage from a small plane crash Saturday night in southeastern Indiana. An executive at the NTSB was among the three people killed when the Cessna crashed into the woods. Indiana State Police/AP hide caption
This video still — released by the National Transportation Safety Board in April 2016 — shows the El Faro's stern underwater. The cargo ship sank in 2015 after sailing straight into a Category 3 hurricane, killing all 33 crew members aboard. National Transportation Safety Board via AP hide caption
One person was killed and more than 100 injured when a New Jersey Transit train crashed into the platform at Hoboken Terminal on Sept. 29. Investigators say they have found no defect in the brakes. Eduardo Munoz Alvarez/Getty Images hide caption
Three crew members were killed after a head-on freight train collision in Panhandle, Texas, on June 28 caused several boxcars to erupt in flames. Sean Steffen/Amarillo Globe-News via AP hide caption
Investigators and first responders work near the wreckage of Amtrak Northeast Regional Train 188, which derailed May 13, 2015, in north Philadelphia. Eight people were killed and hundreds injured in the crash. Win McNamee/Getty Images hide caption
Amtrak said the train was heading from New York to Savannah, Ga., on Sunday when it struck a backhoe outside Philadelphia. Glenn R. Hills Jr./AP hide caption
A photo of the truck that hit and shifted the train tracks, causing an Amtrak derailment in Kansas. National Transportation Safety Board via Twitter hide caption
Smoke inhalation victims walk past a firefighter towards a medical aid bus Monday after passengers on the Washington, D.C., subway were injured when smoke filled the L'Enfant Plaza station during the afternoon rush hour. Paul J. Richards/AFP/Getty Images hide caption
National Transportation Safety Board Chairman Deborah Hersman briefing reporters about the July 2013 crash of Asiana Airlines Flight 214 in San Francisco. Justin Sullivan/Getty Images hide caption