As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT, NR 1 ENGINE OIL PRESSURE WARNING LIGHT INTERMITTENTLY FLASHED AND NR 1 ENGINE OIL PRESSURE GAGE FLUCTUATED 45-55 PSI. CREW SHUT ENGINE DOWN. CHECKED ENGINE OIL. FOUND 6 QUARTS LOW. SERVICED ENGINE OIL. GROUND RAN ACFT. NO LEAKS OR PRESSURE FLUCTUATION NOTED REF 12-10-79 AND 79-32-00. OK FOR SERVICE, NOTE-6 QTS OIL ADDED.