As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OIL LOSS, RTFL. ENG 1 OIL QUANTITY WENT TO ZERO AFTER TAKEOFF WITH PRESSURE DECREASING. CREW CONTACTED TOMC. OIL PRESSURE WAS 217 PSI AND DROPPED TO 179 PSI DURING ARINC PATCH OIL TEMPERATURE WAS IN NORMAL RANGE AT THIS TIME. ESN 724383. REPLACED ENGINE.