At 5:30pm, TVFD was dispatched for full company to assist Station 34 (Churchtown) at a working house fire on Main Street in Caernarvon Lancaster. Responding mutual aid units were advised that the location was across from Station 34 and first arriving crews were making good progress on the fire. Ladder 69 and Engine 69-1's crews assisted with backing up 34's crew with suppression, ventilation, and overhaul. Rescue 69 setup for airbank operations, while Engine 69-5 stoodby for water supply. Squad 69 and fire police assisted with closing Main Street and detouring traffic around the scene. The majority of the damage was held to the area of origin due to the efforts of first arriving firefighters. After the fire was extinguished and hot spots were contained, Engine 69-5 was released from the scene and sent to cover the area from Station 34. TVFD crews remained onscene until the fire marshal completed the investigation and command released the mutual aid units.