May 13th- After leaving a fire on Southgate Street we were tipped off to a helicopter over the Greendale section of the city that was lifting equipment onto a rooftop outside of Saint Gobain. Apparently this was the second day of work for the crew of Construction Helicopters Inc who are based out of Michigan. They were working with Triboro Crane and Rigging. They were using a very cool Sikorsky S61N Helicopter which I had never seen before. We arrived just as they made their last few lifts.