Under Secretary Lord visits AFSC, OC-ALC Published Aug. 21, 2020 By Paul Shirk 72nd Air Base Wing Public Affairs TINKER AIR FORCE BASE, Okla. -- Hon. Ellen Lord, under secretary of defense for acquisition and sustainment, visited Tinker Air Force Base August 18, 2020, to gain an overall understanding of the Air Force Sustainment Center’s mission as the supporting command for readiness in the Air Force.