As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COWL ANTI-ICE LIGHT LIGHT COMES ON AT HIGH THRUST SETTING (TAKEOFF OR CLIMB) AND GOES OFF AT REDUCED THRUST COWL ANTI ICE LIGHT ILLUMINATED AT HIGH THRUST SETTING. LIGHT EXT AT 60 PERCENT N1. REMOVED AND REPLACED NR 1 ENGINE COWL TAI VALVE, IAW MMH 30-21-11. RAN ENGINE OPERATED AND LEAK CHECKED VALVE, CHECKS GOOD. ROTABLE PARTS CHANGE WAS INDICATED - TT 1964037 SN OFF 0802 VALVE, ANTI-ICE OFF 29-3021-9-0002 0802 ON 29-3021-9-0002 0736.