At 7:55 am, Potsdam Fire was alerted to a structure fire with visible flames in Parishville. E-80 arrived as the first on scene apparatus, confirming smoke showing, and stretched multiple hose lines to the residence. Engine crews worked to extinguish the flames and pulled ceilings as the fire had reached the insulation above the trailer, causing it to spread throughout without initially being visible. Once the fire was knocked down, mechanical ventilation was initiated and the smoke was cleared from the residence. Parishville Fire, Hannawa Fire, and County Car 10 assisted on scene. Potsdam Fire was back in service at 10:15 am.