As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 100 HOUR INSPECTION, FOUND RT ENGINE PNEUMATIC PUMP COUPLING OILY. FURTHER INVESTIGATION REVEALED DRIVE SHAFT ADAPTER SEAL LEAKING OIL INTO PUMP COUPLING AND INTO PUMP. REPLACED SEAL (PN 25102) AND PRESSURE PUMP (442CW-12). SYSTEM OPS CHECK OK. RECOMMEND INSPECTING THIS AREA ANYTIME ACCESS IS AVAILABLE.