From Seattle Times:

A Boeing 777 bound for Seoul, Korea, landed safely this afternoon at Seattle-Tacoma International Airport after losing power in one of its two engines.

According to airport spokesman Perry Cooper, Asiana Airlines Flight 271 had departed as scheduled at around 2:25 p.m. The pilot reported to air traffic control, either during takeoff or immediately after, that an engine had somehow caught on fire, Cooper said.

Witnesses reported seeing flames coming from one of the engines.

The plane then circled the airport, dumping fuel over Puget Sound in preparation for an emergency landing. The plane then landed without incident.

There were no apparent injuries to the 179 passengers onboard nor was there obvious damage to the plane's engines, he said.

"We're not sure what happened or what caused it," Cooper said.
He said it's not unusual for a small amount of "flame out" to occur when a plane takes off.

FAA spokesman Mike Fergus said the plane is capable of flying with one engine.

The FAA will investigate the incident and provide a report to the National Transportation Safety Board, Fergus said.

Local News | Boeing plane makes emergency landing at Sea-Tac | Seattle Times Newspaper