As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AT 400 HRS SPECIAL INSPECTION FOUND OIL LEAK ON RT ENGINE, OUT OF VACUUM PUMP SHAFT. REMOVED PUMP FOUND DRIVE SHAFT SEAL LEAKING PN: 06A19956. AFTER THE SEAL REMOVAL DURING VISUAL INSPECTION FOUND RUBBER PART OF THE SEAL SCUFFED IN SOME PLACES CAUSING THE LEAKAGE.