A series of investigations by the Marine Corps have concluded that pilot error was the primary cause of multiple incidents involving F-35 fighter jets, including one that flew autonomously for 11 minutes before crashing. The most notable incident involved a Marine pilot who lost command and ejected from an F-35B, which continued to fly before crashing in South Carolina. This incident, along with the mishap of a military jet that was missing for over a day, has raised concerns about the safety protocols and training of pilots operating these advanced aircraft. The Marine Corps has acknowledged the malfunction of the jets but emphasizes that the accidents were mainly attributed to human error during operation.