As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT, GOT ANTI-ICE DUCT OVERHEAT LIGHT NR 1 AND NR 3 ENGINES WERE BOTH OFF THE TEMPERATURE SCALE. FOLLOWED RED TABS, LIGHT WENT OUT AFTER 1 TO 2 MINUTES ON LANDING. LIGHT CAME ON AGAIN WITH WINGS OFF AND ENGINE ANTI-ICE OPEN. REMOVED AND REPLACED NR 2 ENGINE COWL ANTI-ICE THERMOSTATIC VALVE PER MAINTENANCE MANUAL 30-21-21. NR 2 ENGINE COWL ANTI-ICE THERMAL SWITCH, AND WING ANTI-ICE THERMAL SWITCH. OPERATIONAL CHECK GOOD ON GROUND.