As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - ON FLT NR 2126, NR 1 DC GENERATOR CAUTION LIGHT ILLUMINATED DURING APPROACH. RESET PER CHECKLIST. NR 1 DC GENERATOR CAUTION LIGHT RE-ILLUMINATED DURING LANDING. RESET AGAIN PER CHECKLIST. REMOVED AND REPLACED NR 1 DC STARTER GENERATOR. FUNCTIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.