On December 21, 2019, at approximately 2020 central standard time, Southwest Airlines flight 5246, a B737-700, registration N7739A, struck a bird while descending to Kansas City International Airport (KMCI), Kansas City, Missouri. There were no injuries to the 5 crew members and 136 passengers onboard. The airplane sustained substantial damage to the fuselage. The flight was operating under 14 Code of Federal Regulations Part 121 as a regularly scheduled passenger flight from Ronald Reagan National Airport (KDCA), Arlington, Virginia, to KMCI. According to the flight crew, the airplane was on the downwind leg for arrival on runway 19R at KMCI. As the airplane was descending through 10,000 feet-msl altitude, the flight crew noticed a white object go through the landing lights and heard a loud bang from the from fuselage below their feet. The flight crew checked engine parameters for any anomalies and the airplane for any damage, and none was found. The flight landed uneventfully, and post flight inspection of the airplane revealed evidence of a bird strike and dents in the lower right fuselage skin. Further inspection revealed two internal frames were bent and fractured.