As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, THE CREW SHUTDOWN NR 1 ENG DUE TO LOSS OF OIL QUANTITY. THEY LANDED WITHOUT FURTHER INCIDENT. MX INSPECTED AND FOUND THE STARTER FILLER PLUG OFF. THEY REINSTALLED FILLER PLUG AND LOCKED SERVICED ENGINE. OPS CHECK GOOD IAW AMM 80-10, AMM 12-10. ACFT WAS RETURNED TO SERVICE.