As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE TO EWR, OIL QUANTITY ENGINE NR 1 BEGAN TO DROP AT AN EXCESSIVE RATE WHEN QUANTITY DROPPED TO BELOW ONE GALLON DECISION WAS MADE TO SHUT DOWN NR 1 ENGINE. ENGINE WINDMILLED 26 MINUTES OIL PSI 27 TO 17 PSI. REMOVED AND REPLACED GEAR BOX, RAN ENGINE CHECKED OK IAW 72-00-61.