As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OUTBOUND CREW REPORTING LEFT ENGINE OIL QTY DROPPED FROM 5.0 TO 1.5 ENGINE WAS SHUT DOWN WHILE TAXIING BACK IN DEN ONCE IT REACHED .5 TOMC H CASTRO REPLACED LH ENGINE OIL QUANTITY TRANSMITOR REF REF AMM 79-31-15. OPS AND LEAK CHECK GOOD. PERFORMED IDLE LEAK CHECK REF AMM 71-00-00. PERFORMED EIU TEST PRIOR TO AND AFTER REPLACEMENT OF E1 OIL QTY TRANSMITTER. TEST PASSED BOTH TIMES IN REF WITH AMM 73-25-34-710-042-A.