As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R4 DOOR AREA ALL EXIT SIGN FOUND MALFUNCTION, REF NON-ROUTINE NR 9419569. PLEASE NOTE THE EXIT SIGN INSTALLED POSITION SHOULD READ R4 DOOR. ROTABLE PARTS CHANGE WAS INDICATED-TT NR 1197425 S/N OFF 0441 BATTERY, WIFI E OFF 78-3350-9-9001 0441 ON 78-3350-9-9001 7981. REPLACED R4 DOOR WELS BATTERY. INSTALLATION TEST FOUND NORMAL, REF AMM 33-51-07-02B-720A REV 142.