As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE: CORROSION ON PREVIOUS REPAIR DOUBLER PLATE OF CENTRAL LONGITUDINAL BEAM LOCATED BTW FR84 TO FR 85 AND Y=289RH OF CABIN PAX FLOOR STRUCTURE AT CENTER FUSELAGE III W2; REF: TOMX W/O 2552 N/R 00088 REPLACED PER EMB-190 SRM 51-12-01, SRM 51-10-03, SRM 51-75-16 AND SRM 53-23-10 / REP 54.P. (CONSIDERED AS A MAJOR REPAIR)