Pilot Report
During preflight inspection, the pilot noted approximately 55 gallons of fuel on board. No abnormalities were observed during engine run-up. While climbing through 1,500 feet above mean sea level (MSL), the engine revolutions per minute (RPM) began to fluctuate as the pilot increased throttle. The pilot advised approach control of the engine problem and received clearance to return to the departure airport.
Engine Failure and Ditching
Shortly thereafter, the engine ceased running. The pilot switched fuel tanks multiple times. As altitude decreased, airspeed diminished to stall speed. The pilot extended the flaps and ditched the airplane in the Atlantic Ocean. The airplane subsequently sank in approximately 30 feet of water.
Post-Recovery Examination
According to a Federal Aviation Administration (FAA) inspector, a post-recovery inspection of the engine revealed no significant mechanical problems. The engine was removed from the wreckage and ran at a sufficient power setting for more than ten minutes without issue.