As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OIL FOUND ON ENGINE DECK DURING ALF CHECK. LEAK WAS DETERMINED TO COME FROM THE FRONT MAGNETIC SEAL OF THE FREEWHEEL SHAFT. LEAK RATE WAS MEASURED AT 11.94 ML/H. MAX LEAK RATE ALLOWED IS 10 ML/H AS SPECIFIED IN MFG TROUBLESHOOTING BOOK 71-00-06-816-804-B01. SUSPECT CAUSE TO BE INCORRECT INSTALLATION DURING ASSY OR DEFECT IN THE MAGNETIC SEAL. RECOMMEND MONITORING INSTALLATION PRACTICES AND MAKING NECESSARY CHANGES OR A DESIGN CHANGE TO THE SEAL FOR IMPROVED SEALING CHARACTERISTICS.