Virgin America Inc said a majority of its pilots voted to be represented by the world's largest pilot union, ending its run as the last major U.S. carrier without collective representation for pilots. As much as 75.3 percent of eligible pilots voted for representation by the Air Line Pilots Association, International (ALPA), said the National Mediation Board, an independent government agency that coordinates labor-management relations in the railroads and airlines industries. "The organizing effort was not unexpected, as Virgin America was the last remaining major U.S. airline without a unionized pilot group," Virgin America said in an email statement. The low-cost airline, partly owned by Richard Branson, said it currently employs 612 pilots. The move by Virgin America's pilots comes nine months after its flight attendants voted to seek representation by the Transport Workers Union. (Reuters)