As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX FLIGHT NR 2359: AFTER START UP AND PUSH BACK THRU SELECTED THE PITOT HEAT ON HTE NR 2 PITOT HEAT CAUTION LIGHT WAS ON. MAINTENANCE RESET THE CB TO THE NR 2 PITOT HEAT, REF GMM 5-18-02. CB REMAINED IN SYSTEM. OPERATION NORMAL. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.