Here's some of what the Times is reporting:
— "Flames were seen in the rear electrical/electronics bay, which is underneath the passenger cabin, said two people who were informed of the details."
— "The fire affected the cockpit controls and the jet lost its primary flight displays and its auto-throttle, according to a person familiar with the incident."
Once on the ground, the 42 people on board evacuated safely via the emergency slides, the AP adds.
FlightAware.com has a map of the plane's route. The flight began in Arizona. After flying north to Montana, the jet turned east to Minnesota and then headed south toward Texas.
Today, Boeing said it is not going to do any more test flights of the jets until the cause of yesterday's problems is determined and fixed. At this hour, the company's stock is down about 3%.
As the Times writes, "the troubled Dreamliner program is vital to Boeing's future. After a wildly successful sales period, the plane still has 847 orders on the books even after some cancellations from all the delays."
The jet is designed to be lightweight and fuel-efficient. It is "the world's first mostly carbon fiber jetliner."