As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3852, EN ROUTE FROM BWI TO SYR LOST OIL PRESSURE ON NR 1 ENGINE. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT DIVERTED INTO MDT. LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT ENGINE AND FOUND THE PCU TO GEARBOX TRANSFER TUBE O-RING DAMAGED. REMOVED AND REPLACED THE O-RINGS IAW MAINTENANCE PROCEDURES. GROUND RUN OF ENGINE PROVED SATISFACTORY. AIRCRAFT WAS RETURNED TO SERVICE.