On February 28, 2019, about 1039 central standard time, a Piper PA-46-350P airplane, N428CD, impacted a river after departing from Shreveport Downtown Airport (DTN), Shreveport, Louisiana. The private pilot and passenger were fatally injured, and the airplane was substantially damaged. The airplane was registered to Lennard Properties LLC and was being operated by the pilot under the provisions of Title 14 Code of Federal Regulations Part 91 as a personal flight. The airplane departed on an instrument flight rules flight plan at 1037 during day instrument meteorological conditions, with a destination of Wilbarger Country Airport (F05), Vernon, Texas. The pilot and passenger were flying to a ranch near F05 for a hunting trip. According to preliminary air traffic control (ATC) information, after departing from Runway 32 and reaching 600 ft mean sea level (msl), ATC instructed the pilot to turn left to a heading of 270° and continue climbing to 12,000 ft msl. The airplane turned left continuously for 740 degrees. During this turn, after climbing steadily to 1,400 ft msl, the airplane's altitude began to oscillate between 725 ft and 1,900 ft msl. The airplane subsequently made a decelerating turn to the right and quickly descended, with the last recorded ATC data indicating a ground speed of 31 knots and an altitude of 575 ft msl. The airplane impacted the Red River and came to rest about 17 ft below the river's surface.