Dark & controversial
1953 Pennsylvania Railroad train wreck
Since 1953
The 1953 Pennsylvania Railroad train wreck occurred on January 15, 1953, when a passenger and mail train from Boston to Washington DC (the Federal) failed to brake sufficiently on its approach to Union Station, Washington, jumping the platform and plunging through the floor of the concourse. There were no deaths, but 43 people were injured.
The cause of the accident was a design flaw that allowed an air brake valve to close without human intervention.
Source: Wikipedia / Wikidata
Nearby