As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CATASTROPHIC FAILURE OF OUTER BEARING. ACFT WAS CLIMBING OUT AFTER TAKEOFF. PILOT SAW ALTERNATOR FAIL LIGHT COME ON. LOOKED OUT AT ENGINE NACELLE AND SAW SPARKS. PILOT RETURNED TO AIRPORT WITHOUT ANY INCIDENT. THE BEARING THAT FAILED IS EXPOSED TO THE ELEMENTS OF WEATHER AND WIND BLASTS. SUBMITTER SUGGESTS LUBE OF BEARING EVERY 250 HOURS. REPLACEMENT EVERY 500 HOURS.