LOS ANGELES — The mother of a 17-year-old honors student who was among 10 people killed in a fiery Northern California bus crash sued FedEx on Tuesday, alleging that its trucks have a history of catching fire.

The negligence suit that seeks $100 million in damages is the first filed in connection with the April 10 freeway crash in Orland, said A. King Aminpour, the attorney for the plaintiffs.

The suit was filed in Los Angeles County Superior Court on behalf of Rosa Rivera, mother of Jennifer Bonilla of Los Angeles.

The Dorsey High School student had earned a college scholarship. She and other teens were heading north for a free tour of Humboldt State University when the bus was struck head-on by a FedEx truck.

Dozens escaped through windows before the bus exploded into towering flames, but five students, three adult chaperones and both drivers died.

“She had her whole future before her,” Aminpour said of Bonilla. “She was the first in her family to ever go to college.”

WASHINGTON — The National Mediation Board said Tuesday that pilots at JetBlue Airways Corp. voted overwhelmingly to unionize, reversing two earlier votes.The pilots will join the Air Line Pilots Association. Of the 96 percent of pilots eligible to vote, the association said 71 percent voted to unionize. JetBlue has more than 2,500 pilots.Both the airline and the pilot's union will now organize negotiating committees, JetBlue CEO Dave Barger said.ALPA President Capt. Lee Moak said the organizing campaign succeeded because the pilots wanted a collectively bargained contract and an advocate if their company becomes involved in a merger.The airline's pilots had voted down union representation in 2009 and 2011.On a conference call with reporters, Moak declined to predict how long it would take to negotiate a contract with JetBlue or whether the vote would help unions woo other workers at the New York-based airline.

NEW YORK — AT&T's wireless business had a strong first quarter as the company added more than 1 million subscribers and benefited from an installment plan that permits frequent phone upgrades.Although customers in the installment plan, called Next, aren't locked into traditional two-year service contracts, they pay the entire cost of phones in installments. As a result, AT&T doesn't have to pay hundreds of dollars per customer in subsidies. In return, customers can get a new phone as often as every year instead of every other year.The company's first-quarter net income was $3.7 billion, or 70 cents per share, compared with $3.7 billion, or 67 cents, a year earlier, when AT&T had more shares outstanding.