As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND THAT THE FLOAT VALVE ARM WAS HITTING THE RETAINER HUB WHEN THE VALVE WAS FULLY ENGAGED. IT WOULD APPEAR THAT THE ARM COULD SUFFER ENOUGH DAMAGE TO SEVER THE ARM FROM THE FLOAT BASE AND THAT WOULD ALLOW THE FLOAT VALVE CLOSE AND SHUT THE FLOW OF FUEL OFF FROM THE ENGINE. PHOTOS OF THE VALVE. (K)