As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT DEPARTED AND ON CLIMB THE PILOT REPORTED A LOW OIL PRESSURE INDICATION ON THE LEFT HAND ENGINE. THE AIRCRAFT RETURNED TO BASE. A TECHNICIAN WAS CALLED IN, AND FOUND THAT THE FCU/FUEL PUMP DRIVE SEAL HAD MIGRATED, AND WAS LEAKING. A NEW SEAL P/N:3022375 AND SEAL CARRIER P/N:3004085 WERE INSTALLED. ENGINE GROUND RUNS COMPLETED SATISFACTORY, AIRCRAFT RETURNED TO SERVICE.