As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT 2172 FROM EUG TO SEA RECEIVED NR 2 AC GENERATOR CAUTION LIGHT FIVE TIMES DURING VARIOUS PHASES OF FLIGHT. RECYCLED PER THE EA CHECKLIST, BUT IT WOULD COME ON AGAIN AFTER A WHILE EACH TIME. MAINTENANCE REPLACED NR 2 ENGINE GCU. OPERATION CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.