This morning Amity Fire and Rescue was dispatched to 139 Amity Park Road for a possible structure fire. PD arrived on location and advised this to be a fully involved barn fire. Engine 49 and Chief 49 arrived on location followed by the rest on Company 49's fleet and confirmed a working fire and pulled several CAFS lines and extinguished the fire and went into overhaul. Crews later went available.  Thanks to all companies that assisted!