Several Trenton, Grosse Ile and Edgemont residents reported hearing a long and loud jet engine noise at about 2:30 a.m. Tuesday, April 23 2013. Investigations showed that the high-pitched noise, ressembling the sound a teapot makes when water boils inside and the pot releases steam, was created while workers were restarting a generating unit. This opened a pressure release valve from which steam released for about 90 minutes.
Some residents said the noise sounded like a jet engine. Others said it was extremely loud and woke up and scared their sleeping children. One is sure: this noise was frightening since nobody could figure out what was going on! Many were than kept awake for long time during this night!