As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE CHECK, THE LEFT HAND AFT OVERWING EXIT EMERGENCY AND PULL SELF LUMINOUS EXIT SIGNS FAILED INTENSITY INSPECTION. REMOVED AND REPLACED LEFT HAND AFT OVERWING EMER EXIT AND PULL SELF LUMINOUS EXIT SIGNS IAW MM 335031.