NTSB engineers Ben Hsu and Sean Payne examine recorder from lead locomotive of Amtrak train 501 (which derailed on December 18th) at the NTSB lab in Washington on December 20th, 2017
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/68618467@N03">National Transportation Safety Board</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ntsb/38345734865/">DuPont, WA Amtrak accident</a>