As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CHECKING ENGINE FOR PERSISTENT OIL LEAK, FOUND IT TO BE COMING FROM AREA OF LT MAG. MAG REMOVED AND WAS FOUND TO HAVE 1.5 INCH SECTION OF MOUNTING FLANGE CRACKED OFF. THIS IS THE SECOND MAG ON THIS ENGINE TO HAVE THIS PROBLEM. PREVIOUS MAG WAS TORQUED TO SPECS AS WAS THIS ONE. (K)