As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHUT DOWN THE NR 1 ENGINE DUE TO LOW OIL QUANTITY. MAINTENANCE NOTED THAT UPON ARRIVAL, OIL QUANTITY RETURNED TO 18 QUARTS. NO LEAKS FOUND. PERFORMED AN INSPECTION OF THE SCAVENGE SYSTEM FILTERS, FOUND DEBRIS IN THE TRANSFER GEARBOX INLET SCREEN TO THE SCAVENGE PUMP. POWERPLANT ENGINEERING WAS THEN PRESENTED WITH ALL FINDINGS AND THEY CALLED FOR ENGINE TO BE REPLACED. THE NR 1 ENGINE WAS REPLACED IAW MM 71-00-02.