As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUE TO LOW OIL QUANTITY AND PRESSURE FLUCTUATION SHUT DOWN NR 1 ENGINE IN FLIGHT AT 15:45PER ABNORMAL CHECKLIST PAGE 3-122 (HALF GALLON AND BELOW 40 PSI). DUE TO LOW OIL QUANTITY AND PRESSURE FOUND RETURN LINE TO OIL TANK LOOSE. RESECURED LINE, FILLED OIL TANK. PRESSURE AND LEAK CHECK NORMAL. MAIN OIL FILTER FOUND CLEAN. LEAK CHECK ON RUN-UP CHECKS GOOD.