As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT EXPERIENCED HEAVY OIL LOSS ON NR 1 ENGINE 40 MINUTES AFTER TAKEOFF WHICH RESULTED IN NR 1 ENGINE IFSD AND ACFT AIR TURN BACK. UPON ACFT ARRIVAL, BEY GROUND INVESTIGATION REVEALED CRACKED NR 1 ENGINE DELTA PRESSURE SWITCH OIL TUBE. ITEM 150 REF: IPC 79 - 31 - 02 - 01, PAGE 1, NO EVIDENCE OF CHAFING OR INTERFERING. PIPE ASSY REPLACED AND ACFT RETURNED TO SERVICE.