Pilot who survived identified as Peter Siebold , 44 , Sheriff 's Office says . Siebold had worked for Scaled Composites since 1996 , according to his biography on the company website , and had 17 years and more than 2,000 hours of flight experience . Authorities identified pilot who died as Michael Tyner Alsbury , 39 . Virgin Group founder Richard Branson vows to find out ' what went wrong ' Both pilots worked for Virgin Group 's partner , Scaled Composites .
Pilot who survived identified as Peter Siebold , 44 , Sheriff 's Office says . Authorities identified pilot who died as Michael Tyner Alsbury , 39 . Virgin Group founder Richard Branson vows to find out ' what went wrong ' Both pilots worked for Virgin Group 's partner , Scaled Composites .