As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK, MAINTENANCE REPORTED LEVE 2 CORROSION ON CENTER FUSELAGE III PASSENGER FLOOR STRUCTURE AT SPLICE PLATE BETWEEN FR 87-88 AND LBL 36 AREA. MAINTENANCE REMOVED AND REPLACED THE SPLICE PLATE BETWEEN FR 87-88 AND LBL 36 AREA ON CENTER FUSELAGE III PASSENGER FLOOR STRUCTURE IAW EMBRAER SRM 51-42-04. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.