As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEN - ON CLIMB-OUT, RECEIVED A LEFT XFER SOV FUEL CAUTION. AFTER CHECKLIST PERFORMED, NO FURTHER PROBLEMS. RETURNED TO THE FIELD. MAINTENANCE REPLACED THE LEFT FUEL TRANSFER SOV CARTRIDGE. OPERATIONAL AND LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.