As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT, NR 2 ENGINE OIL QUANTITY STARTED RAPIDLY DECREASING. A PRECAUTIONARY SHUTDOWN OF THE NR 2 ENGINE WAS PERFORMED A .8 GALLONS INDICATED OIL QUANTITY. FOUND THREADS IN THE GEARBOX CASE FOR THE LP6 FITTING PULLED OUT. THREADS WERE REPAIRED AND THE FITTING WAS REPLACED. SERVICED ENGINE OIL AND PERFORMED ENGINE RUNUP. SYSTEM CHECKED OK. AIRCRAFT RETURNED TO SERVICE.