Ahh, the media...
It was a UA B-757, tail number N537UA
Lost a bearing on one of the nose gear wheels causing a small grease fire on the nose gear.. The evac did take place, with not a single injury from the incident. The crew was notified of the problem by other flight crews around the UA a/c. The media here reported that it was caused by overheated brakes, but as we all know, there are no brakes on the nose gear...
Tom