Coast Guard Lt. Nicholas Peters inspects the rotor head and anti-icing sensor before turning on the engines of the MH-60 Jayhawk helicopter at Air Station Cape Cod in Massachusetts, Jan. 19, 2017. The anti-ice and de-icing systems are activated when ice accumulates on the engines and rotor blades of the helicopter. (U.S. Coast Guard photo by Petty Officer 3rd Class Nicole J. Groll)