As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2328: NR 1 DC GEN ILLUMINATED. CHECKLIST WAS RUN. RESET NR 1 GEN AND IT REMAINED ONLINE. MAINTENANCE REMOVED AND REPLACED NR 1 DC GCU IAW Q400 AMM 24-31-06, PAGES 401-406. PERFORMED OPERATIONAL TEST OF THE DC GCU IAW Q400 AMM 24-31-06 PAGES 501-504. OPS TEST GOOD. AIRCRAFT RETURNED TO SERVICE.