WOONSOCKET, RI (PROVIDENCE COUNTY) - Firefighters arrived to find heavy fire venting out of several windows on the first floor on side 2 and 3 of this occupied multiple family dwelling. The structure at 136 Carrington Avenue housed 6 apartments on 3 floors. Police arrived first and reported the possibility of trapped occupants prompting command to strike a second and third alarms. Blackstone, MA Ladder 1 responded into the scene because of Woonsocket's Ladder 2 being city service only due to mechanical issues. The aggressive first due companies stretched in several hand lines and also searched the dwelling. Searches turned up negative as the heavy overlapping started to darken down on the first floor. The fire did extend upwards to the second and third floors through chases and voids. The moderate smoke condition started to turn to chocolate fudge color on the upper floors as the fire started to roll on the upper floors. Command then made the decision to pull out the firefighters as fire started to show from the dormers on sides 2 and 4. Woonsocket Ladder 1 opened it's ladder pipe into the heavy fire on side 2 as firefighters also played hand lines into the dwelling. Command made the decision to allow companies back into the structure as the heavy fire was knocked down. Cumberland Hill's Engine 41 responded for RIT and also their air supply unit for refilling of spent air cylinders. Interior crews chased pockets of hidden fire bringing the fire under control in another hour. Mutual aid covered the empty city fire houses will companies mopped up.