Jad Mouawad The New York Times

The blowout of an engine on Qantas Flight 32 on Thursday was the latest in a series of problems involving Rolls-Royce engines and analysts said it raised serious questions about the company's ability to develop the engines for the newest generation of commercial and military airplanes.The episode, involving a Qantas A380 jetliner carrying more than...

As Europe grounded most airline flights for a fourth day on Sunday because of a volcanic ash cloud spreading from Iceland, increasingly desperate airlines ran test flights to show that flying was safe and pressed aviation authorities to loosen the flight ban.

The blowout of an engine on Qantas Flight 32 on Thursday was the latest in a series of problems involving Rolls-Royce engines and analysts said it raised serious questions about the company's ability to develop the engines for the newest generation of commercial and military airplanes.The episode, involving a Qantas A380 jetliner carrying more than...

As Europe grounded most airline flights for a fourth day on Sunday because of a volcanic ash cloud spreading from Iceland, increasingly desperate airlines ran test flights to show that flying was safe and pressed aviation authorities to loosen the flight ban.