Update from the newsroom:
>> The reports that the plane swerved off the right side were just - incorrect - as the photos have long since revealed.
>> Some reports now that perhaps there WAS fire visible on one engine or another before the first swerve, so a powerplant failure (stall, ingestion, etc.) is still a possibility.
>> yes that is a fire station just off the skid path, (No. 4 on the diagram)and yes it was manned, and yes it responded within seconds due to the proximity. That plus the fact that the plane was well below V-speeds gets credit for the low number and severity of injuries.