As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, NR 1 ENGINE OIL QUANTITY WENT TO ZERO. LOW OIL PRESSURE LIGHT ILLUMINATED WITH LOSS OF OIL PRESSURE. COMPLIED WITH ENGINE SHUTDOWN CHECKLIST. EMERGENCY WAS DECLARED. AIRCRAFT LANDED WITHOUT INCIDENT. FOUND NR 1 ENGINE OIL BYPASS LINE LOOSE. REPLACED O-RINGS AND RESECURED LINE. LEAK CHECK AND OPERATIONAL CHECK NORMAL. (M)