There seem to be a number of reports(media) that the flight crew were not aware of the fire until told by ATC.
If true, this is slightly worrying, as is the inference that it was the airport fire service that put out the fire, rather than any "in-engine" extinguishing system.
Would a 737 expert care to expand on this, giving the "real" picture?. . <img src="confused.gif" border="0"> <img src="confused.gif" border="0">