Telecomunicaciones y tecnología
Surviving pilot thrown from Virgin Galactic SpaceShipTwo - U.S. officials
The National Transportation Safety Board, which is investigating the Oct. 31 crash in Southern California, also found Siebold was unaware that his co-pilot had unlocked the craft's moveable tail section, which appears to have set off a chain of events that led to ship's destruction.
Mike Alsbury, the co-pilot, was killed in the crash.
(Reporting by Alex Dobuzinskis; Editing by Susan Heavey)