What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Pilot/mechanic made forced landing in field after engine stopped. During landing approach the aircraft stalled, making a hard landing. Pilot in his statement to this office, stated that the fuel selector valve may have been installed wrong. During investigation the fuel selector valve was removed, and revealed that multiple holes were drilled in the selector valve shaft that could allow the handle to be installed to indicate both tanks selected when the valve was actually closed.
As the FAA filed it
PILOT/MECHANIC MADE FORCED LANDING IN FIELD AFTER ENGINE STOPPED. DURING LANDING APPROACH THE AIRCRAFT STALLED, MAKING A HARD LANDING. PILOT IN HIS STATEMENT TO THIS OFFICE, STATED THAT THE FUEL SELECTOR VALVE MAY HAVE BEEN INSTALLED WRONG. DURING INVESTIGATION THE FUEL SELECTOR VALVE WAS REMOVED, AND REVEALED THAT MULTIPLE HOLES WERE DRILLED IN THE SELECTOR VALVE SHAFT THAT COULD ALLOW THE HANDLE TO BE INSTALLED TO INDICATE BOTH TANKS SELECTED WHEN THE VALVE WAS ACTUALLY CLOSED.