On April 13, 2023, about 1512 eastern daylight time, an experimental amateur-built Spatz RV-14A airplane, N412RS, was substantially damaged when it was involved in an accident near Fallston, Maryland. The private pilot was seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The airplane impacted a corn field about 50 ft from the approach end of runway 4 (2,200-ft-long) at the Fallston Airport (W42), Fallston, Maryland. There were no known witnesses to the accident. The wreckage came to rest upright and there was no fire. The right wing separated during the impact sequence and was located adjacent to the main wreckage. The forward fuselage was twisted and buckled. The engine remained attached to the fuselage and the propeller remained attached to the engine. The empennage exhibited minor damage. The landing gear were buckled under the fuselage. The pilot reported that, due to his injuries, he did not recall the final approach. He reported on his NTSB Form 6120.1 (Pilot/Operator Aircraft Accident Report) that there were no mechanical malfunctions or failures associated with the accident. The wreckage was recovered to an aircraft salvage facility where further examination was performed. The examination of the wreckage, including the flight controls, fuel system, and engine, did not reveal evidence of a malfunction or anomaly that would have precluded normal operation of the airplane. The airplane was equipped with a Garmin G3Xi flight display system. Flight, engine, and systems information was recorded in non-volatile memory and downloaded by the investigation team. The data indicated that the airplane took off from Harford County Airport (0W3), Churchville, Maryland at 1456. The pilot initiated a left, climbing turn to the southwest toward W42, which was about 10 nm away. The pilot appeared to circle the field at W42 and then flew two approaches to runway 22. After the second approach, he commenced a climbing, left 270° turn to a right base leg for runway 4. He turned onto final approach about 1/4 nm south-southeast of the runway threshold at about 200 ft agl. The G3Xi data showed that the engine speed increased during the final phase of flight, peaking at 2,580 rpm about one second before ground impact. The airplane heading and roll parameters indicated a right turn in the 5 seconds before impact, with the roll angle increasing from about 18 degrees right to 54 degrees right 2 seconds before impact, before decreasing to 8 degrees right 1 second before impact. The vertical speed decreased from a 166 ft/min descent about 5 seconds before impact to a 1,017 ft/min descent 1 second before impact. Additionally, the device was capable of recording a parameter for angle of attack, but no data for that parameter were recorded. Additionally, the parameter “CAS Alert” recorded the value “AOA UNCAL” for the entire duration of the accident flight.