January 27, 1967
"Gus Grissom, Ed White and Roger Chaffee are killed on the launch pad when a flash fire engulfs their command module during testing for the first Apollo/Saturn mission. They are the first U.S. astronauts to die in the line of duty."
From Wired Article
You may wish to look at this:
ReplyDeletehttp://wandereruk.blogspot.com/2008/10/apollo-11.html