As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE USING AIRFOIL ANTI-ICE LEFT HAND ICE PROTECTION TEMPERATURE HI ANNUNCIATOR ILLUMINATED. AFTER SECURING SYSTEM, RH ICE PROTECTION TEMP. HI ILLUMINATED. SECURED THE SYSTEM. -- PERFORMED SYSTEM TESTS ON RIGHT HAND AND LEFT HAND SIDES. ALL TESTS WERE WITH-IN SPECIFIED LIMITS. ALL TEMPERATURES CHECK NORMAL. SYSTEM OPERATIONALLY CHECK GOOD. REMOVED AND REPLACED RELAY R2-664.