The Fond du Lac fire chief says the Flight for Life helicopter is a well kept secret that helps save lives. A Flight for Life anniversary celebration was held Friday at the Fond du lac Holiday Inn. Fire chief Pete O’Leary says Flight for Life is always ready in the event of a medical emergency. “They save a lot of lives,” O’Leary said. “Their ability to do some things out in the field, we work very well with them. They save lives.”