U.S. Coast Guard Cutter Bertholf (WMSL 750) crewmember Petty Officer 1st Class Brett Linder pulls a fuel sample for inspection after the Bertholf receives fuel from the USNS Amelia Earhart (T-AKE 6) during an underway replenishment while on patrol in the East China Sea, March 29, 2019. Crewmembers routinely inspect fuel samples ensuring the fuel does not contain damaging contaminants such as water or sediment. U.S. Coast Guard photo by Petty Officer 1st Class Matthew S. Masaschi.