As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NOTED ALTERNATOR OUT LIGHT DURING RUNUP. LT ALTERNATOR WAS FOUND SEIZED AND DISCOLORED BY HIGH TEMPERATURE. ALTERNATOR BELT WAS ALSO FOUND BROKEN. ALTERNATOR TT WAS 119.5 SINCE O/H. ALTERNATOR WAS REPLACED WITH SERVICEABLE SPARE AND RETURNED TO SERVICE.