As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED LEFT AND RIGHT ALTERNATOR LIGHTS ON IN FLIGHT. UPON INSPECTION MAINTENANCE DETERMINED THE LEFT ALTERNATOR FIELD WIRE HAD BECOME DISCONNECTED AT LEFT ALTERNATOR SWITCH. THE WIRE WAS RE-CONNECTED AND OPERATIONALLY CHECKED WITH NO FURTHER DEFECTS NOTED.