This incident was called into the MSHA 24 hour hotline at 12:20am on 2/13/2011. There was an unplanned ignition of lubricant in the Kiln #1 Bull Gear housing. The fire was first noted at 10:15pm. It was extinguished at 10:35pm but continued to reflash until 10:50pm. MSHA inspector of the Rolla, MO field office was onsite conducting the investigation on 2/16/2011