As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUX PITOT HEATER FAIL CAUTION LIGHT ILLUMINATED NOTED C/B POPPED CHOSE NOT TO RESET SINCE OCCURRED ON PREVIOUS FLIGHT. TOOK ABOUT 20 MINUTES FOR C/B TO POP AFTER SELECTING SWITCH ON. MAINTENANCE COULD NOT DUPLICATE PROBLEM ON GROUND DUE TO LENGTH OF TIME IT TAKES TO POP C/B. REMOVED AND REPLACE AUX PITOT HEAT UNDER CURRENT MONITOR. ALL CHECKS GOOD AT THIS TIME.