What was found
SIG EVENT - THE PILOT REPORTED THAT 600 LBS OF FUEL DRAINED FROM THE MAIN TANK TO THE AUX TANK (LT). MX REPAIRED BY REPLACING THE LT AUX FUEL LINE CHECK VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SIG EVENT - THE PILOT REPORTED THAT 600 LBS OF FUEL DRAINED FROM THE MAIN TANK TO THE AUX TANK (LT). MX REPAIRED BY REPLACING THE LT AUX FUEL LINE CHECK VALVE.