As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN ANTI ICE DUCT MASTER WARNING ILLUMINATED DURING CLIMBOUT AT 13000. ICE PROTECTION ALL OFF AT THAT TIME ANTI ICE PAGE INDICATED RIGHT WING FLASHING RED FOLLOWED QRH CLOSED 14TH AND STILL HAD WARNINGS ILLUMINATEED WITH POWER SET FOR 250 LEVEL AT 10000. TROUBLESHOOT RIGHT WING AND FOUND THERMAL SW S38WK SHORT WITH MEGGER. REMOVED AND REPLACED SW IAW AMM 36-21-07. EVERYTHING ELSE CHECKS GOOD AT THIS TIME REQUIRES OPERATIONS CHECK ON AML 2539933.