As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEG - FLIGHT NR 2300 ON APPROACH, WHEN SELECTING FLAPS, THE FLAP POWER CAUTION LIGHT ILLUMINATED. FOLLOWING THE EMERGENCY CHECKLIST, UNABLE TO RESTORE POWER TO THE FLAP SYSTEM. CONDUCTED ZERO FLAP LANDING WITHOUT INCIDENT. MAINTENANCE COMPLIED WITH S/L DH8-400 SL-27-002A CAUTION LIGHT EXTINGUISHED. COMPLIED WITH OPERATIONAL CHECK. OPERATIONAL CHECK GOOD. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.