As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXPERIENCED LOW OIL PRESSURE INDICATION IN NR 2 ENGINE. SHUT DOWN NR 2 ENGINE. *S/D* DURING REPLACEMENT OF FUEL PUMP FOR TIME, FUEL PUMP DRIVE SHAFT O RING WAS NOT INSTALLED CAUSING OIL LOSS, AND ILLUMINATION OF LOW OIL PRESSURE LIGHT. AIRCRAFT RETURNED TO SERVICE AFTER INSTALLATION OF MISSING O RING, OIL SYSTEM SERVICE AND FUNCTIONAL RUN.