On May 17th at 13:12 hours, Truck 53 was alerted for a building fire in the Borough of Chambersburg, box 1-01.  The Truck responded to 14 N. Main St. and was ordered to set the stick up to the Charley Delta corner.  A large pile of hay bales was found to be burning on the roof. Truck personnel assisted with overhaul on the roof, and checked for extension on neighboring buildings  One hot spot was found on the adjacent building, the tower crew assisted st.4 personnel with extinguishing it.  The Power Tower returned to service at 15:48 hours