As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH FOR LANDING, THE RT ENG OIL PRESS BEGAN FLUCTUATING. OIL PRESS DROPPED TO 40 PSI WITH THROTTLE AT IDLE & THE OIL PRESS ANNUNCIATOR ILLUMINATED. RT ENG WAS SHUTDOWN AT 1.5 MILES ON FINAL. ACFT LANDED UNEVENTFULLY. SUBSEQUENT INSPECTION REVEALED A 90 DEGREE FITTING ON THE OIL COOLER HOSE HAD BEEN RUBBING AGAINST THE STARTER & GEN COOLING DUCT CAUSING A LEAK IN THE FITTING, RESULTING IN ENG OIL LOSS IN FLIGHT.