As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURNG PROGRESSIVE INSPECTION OF ENGINE FOUND LOWER ALTERNATOR MOUNTING HOLE BROKEN OFF. PROBABLE CAUSE IS ENGINE VIBRATION OR MISALIGNMENT OF ALTERNATOR ON ENGINE MOUNTING BRACKET. RECOMMENDATINS IS TO INSTALLED AND RUBBER SHOCK MOUNT IN THIS AREA OR SHIMES TO ALIGN THE ALTERNATOR.