Amateur-built Glasair Super IIS-TD accident near Jasper, Georgia, November 4, 2022

The NTSB's narrative final · quoted from the NTSB record

The pilot reported that during the climb, about 4,500 ft mean sea level, the engine began to run rough, and shortly thereafter lost all power. The pilot immediately turned back toward the departure airport, which was about 5 miles from his position. He began troubleshooting the loss of power, but power was not restored. The pilot was able to glide to the airport; however, in a right turn to align with the runway, the pilot felt the onset of an aerodynamic stall. He leveled the wings, the airplane overshot the runway, descended abruptly, and impacted a grass area hard next to the runway. The left wing and fuselage sustained substantial damage. A postaccident test run of the engine revealed it produced normal power with the electric fuel pump on, but would not operate with only the engine-driven fuel pump. Further examination and disassembly of the engine-driven fuel pump revealed no anomalies that would have explained its inability to pump fuel. The pilot reported that in the climb he turned off the electric fuel pump and, after the loss of power, he did not turn the pump back on, despite the owner’s manual instructing pilots to use the electric fuel pump following a loss of engine power. Had the pilot turned the electric fuel pump on, power likely would have been restored.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.