Home U.S. Army Sgt. Mathew Koenig, Apache helicopter repairer, assigned to Delta Company, 1-3 Attack Battalion, 12th Combat Aviation Brigade zeros the flight control rigs on an AH-64D Apache helicopter at Lielvarde Air Base, Latvia, April 5, 2022. Zeroing of the rigs is important to ensure the accuracy of the helicopter’s response to the pilots’ controls. (Army Sgt. Preston Malizia) U.S. Army Sgt. Mathew Koenig, Apache helicopter repairer, assigned to Delta Company, 1-3 Attack Battalion, 12th Combat Aviation Brigade zeros the flight control rigs on an AH-64D Apache helicopter at Lielvarde Air Base, Latvia, April 5, 2022. Zeroing of the rigs is important to ensure the accuracy of the helicopter’s response to the pilots’ controls. (Army Sgt. Preston Malizia)