As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AFTER START CHECKLIST AUX PITOT LIGHT ILLUMINATED AFTER POSITIONING PROBE HEAT SWITCHES ON AND NOTED CIRCUIT BREAKER HAD POPPED. GROUNDED-YES. CREW COULD NOT DETERMINE IF C/B POPPED DURING SWT OPERATIONS, THEY NOTICED IT DURING VISUAL SCAN. RESET AUX PITOT C/B AT P18-3 (D6), IAW B737-900 AMM 20-60-01. CB REMAINS RESET AND PROBE HEATS NORMAL, IAW B737-900 FIM 30-31 TASK 801.