U.S. Coast Guard Petty Officer 2nd Class Donald DiVincenzo, an avionics electrical technician assigned to Coast Guard National Capital Region Air Defense Facility in Washington D.C., conducts a post-flight engine wash with ionized water on an MH-65 Dolphin helicopter on the ramp at the air defense facility, June 15, 2025. In the first year of operations, NCRADF helicopter crews made 93 intercepts. (U.S. Coast Guard photo by Petty Officer 2nd Class Tyler Robertson)