word on the street is that the crew reported a loss of Rotor RPM, noise/whine, and a chip light, entered autorotation, and during the auto, something "broke free" and single engine power was re-established. This allowed them to continue on one engine down to the traffic circle. During the deceleration, the aircraft caught a wire that was strung between the light poles and that brought the pole down. I'm purposely leaving more specific details out because everything I know is at least 3rd hand info. Based on what I heard, it sounds like the crew did a good job managing an abnormal situation and subsequent loss of NR.