As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - FLT 1456 - EN ROUTE DEN-DFW - UPON DESCENT DETECTED LEFT ENGINE OIL PRESSURE LOW CAUTION LIGHT ILLUMINATE. LEFT OIL QUANTITY DECREASED TO ZERO AND LEFT ENGINE WIND MILLED UNTIL TOUCH DOWN. LANDED DFW WITHOUT FURTHER INCIDENT. REPLACED LEFT SIDE ENGINE. THE NR 4 AND 5 SCAVENGER PUMPS FAILED. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)