A Chandler Police 911 operator was killed Sunday morning north of Flagstaff. Chandler Police say 58-year-old Cathy Coppes was riding a motorcycle southbound about 20 miles north of Flagstaff on Highway 89. At around 10:36 a.m. a truck travelling northbound, crossed the center line and struck her head on. Coppes was not wearing a helmet at the time of the accident and was killed instantly. DPS says a 42-year-old Kaibeto man was driving the truck. He was not wearing a seat belt at the time of the accident and was taken to Flagstaff Medical Center for treatment. Coppes worked for Chandler Police since 2002. The accident is under investigation.