Office Building, Other Business Quincy, MA – Fire on top floor of office building held in check by sprinkler system April 27, 2017 viking210 A blaze on the top floor of a Quincy office building kept firefighters busy early Wednesday morning. Firefighters responded to 300 Crown Colony Drive shortly before 1 a.m. to investigate a fire alarm in the building. When they arrived, they discovered that the sprinkler system was going off on the fifth floor, Quincy Fire Deputy Chief Ed Fenby said. Additional manpower and engines were called to the building. When they went up to investigate, dense black smoke was filling the suite belonging to MCMC LLC, a health insurance company. They forced their way into the locked office and found a power strip, computer and printer that were on fire, Fenby said. “The sprinkler kept it in check and they put out the rest of it and checked to make sure it didn’t get into the walls,” Fenby said. No one was believed to be in the building at the time of the fire and it is not considered suspicious. Because the windows of the building do not open, the fire department had to smash one of them in order to help ventilate the unit.