As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 4 ENG NACELLE TEMP GAUGE, IN TURBULANCE A LOOP TEMP INDICATOR MOVED FROM 0 TO 2 CAUSING FIRE DETECTION LIGHT ON PILOTS PANEL TO FLICKER ON/OFF. REMOVED AND REPLACED NR 4 ENG UPPER AFT SENSING ELEMENT PER MM 26-11-02. OPS CHECKED NORMAL PER 26-11-00 S/N ON 0195 SN OFF 0978 PN ON 472923, THIS CLEARS ITEM M 127189.