A U.S. Marine Corps F-35B stealth fighter jet crashed Friday near the Miramar air base in San Diego, California [1, 2, 3].

The loss of a high-performance stealth aircraft represents a significant material loss for the military and triggers a rigorous safety investigation into the cause of the failure.

A Marine Corps spokesperson said the pilot is expected to live after ejecting from the jet [2]. The aircraft went down on Friday near the Miramar airbase [3]. Military officials said the incident is a "Class A mishap" [1].

Class A mishaps are the most severe category of aviation accidents, typically involving the loss of an aircraft or significant casualties. The F-35B is a costly asset, with a single jet valued at $109 million [1].

While most reports place the crash in San Diego, one conflicting report suggested the incident occurred near the Leemore Naval Air Station, approximately 40 miles southwest of Fresno, California [4]. That same report attributed the aircraft to the U.S. Navy rather than the Marine Corps [4]. However, primary statements from the Marine Corps and Associated Press confirm the aircraft belonged to the Marines and crashed in the San Diego area [1, 2].

Amateur video captured the immediate aftermath of the crash as emergency crews responded to the site [2]. The Marine Corps has not yet released the specific cause of the crash, but the Class A designation ensures a formal investigation will be conducted to determine if the event was caused by mechanical failure or pilot error [1].

“"The pilot is expected to live after ejecting from the jet"”

The classification of this event as a Class A mishap indicates a critical failure that exceeds a specific financial or safety threshold. Because the F-35 program is a cornerstone of U.S. aerial stealth capabilities, investigators will focus on whether this crash reveals a systemic flaw in the F-35B variant or was an isolated incident. The successful ejection of the pilot confirms the reliability of the aircraft's escape system despite the loss of the airframe.