On 10/03/25 at 8:35 am, the coal mill operation began. At 9:26 am, the control operator noticed a fire on the coal mill line. Employees secured the area and tried to extinguish it. When it persisted, the Hygiene Fire Dept. was called at 9:44 am and arrived at 9:56 am. MSHA was notified the same day and visited on 10/06/25 to review the area and follow up on the investigation.