United Airlines: Pilot taken off San Francisco-bound flight

United Airlines says it's investigating after a pilot was removed from a San Francisco-bound flight before it left Austin, Texas.United Airlines spokesman Charlie Hobart confirmed the pilot wasn't in uniform when she boarded the plane Friday. He says another pilot was brought in and the flight was delayed about two hours.Hobart also confirmed the pilot was the woman shown in videos posted on social media talking to passengers over the intercom. Some people tweeted they were passengers on the fli