As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING ENGINE LEAK INSPECTION, AFTER A FUEL MIXTURE DEFECT WHICH REQUIRED SID97-3F TO BE CARRIED OUT, A SMALL AMOUNT OF OIL WAS NOTICE COMING FROM THE BOTTOM OF THE OIL SUMP. WHEN WIPED CLEAN WITH FINGER, LEAK BECAME WORSE. REMOVAL AND INSPECTION REVEALED A SMALL HOLE NEXT TO THE WELD WHICH HOLDS A LOCKWIRE TAB FOR THE OIL SUMP DRAIN. SUMP WAS REPLACED AND SENT FOR REPAIR.