20250722010739A

7/21 Owner and instructor stop to fill both tanks and begin last training flight of the day at 20:23 flying approx 46 minutes before stopping for the evening. 7/22 begin 1st training flight at 13:02 flying approx 62 minutes. 7/22 2nd training flight of approx 109 minutes. 7/22 3rd training flight 0F approx 50 minutes. 7/22 4th training flight of approx 30 minutes. During 4th training flight on base to final while pilot is wearing foggles and safety pilot/instructor is observing, aircraft loses power, begins to sputter. Pilot pushes mixture to full, but no change is observed. Instructor takes control of throttle while pilot looks for potential landing areas. Instructor reduces mixture and selects low speed fuel pump no improvement observed. Instructor increases mixture and selects high speed fuel pump. Engine continues to lose power, fails. Stall warn begins to alert. Instructor takes command of control wheel and lands aircraft approximately 300 feet short of runway coming to a stop in ditch against vegetation. Pilot turns fuel tank lever and battery master switches to off. Pilot and instructor exit aircraft with no injuries. During after accident interviews the pilot and instructor both state a visual inspection of the fuel tanks and remaining fuel quantity was not performed as part of the preflight for the accident flight. Upon inspection of the accident aircraft fuel tanks by aviation safety inspectors the right wing tank was noted to have less than one gallon of fuel remaining. The fuel tank placard indicates the tank holds 3 gallons of unuseable fuel.