Petty Officer 3rd Class Vincent Virgen inspects one of the USCGC Stone's (WMSL 758) main engines in the Stone's engineroom off Brazil's coast on Feb. 2, 2021. Engineering watchstanders check the bilges of the Stone's machinery spaces twice per hour to check for leaks or malfunctions. (U.S. Coast Guard photo by Petty Officer 3rd Class John Hightower)