As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT SELECTED ENG ANTI ICE FOR NR 1 ENG. "COWL VALVE OPEN" LIGHT REMAINED BRIGHT BLUE WITH AN AMBER "TAT" INDICATION FOR NR 1 ENG ON MFD. CYCLED NR 1 ENG ANTI ICE SEVERAL TIMES WITH SAME RESULT. REPLACED NR 1 ENG COWL THERMAL ANTI ICE VLV IAW AMM 32 21 11 111 801. OPS CHECK NORMAL.