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 FLOOR BEAM BTW FR87 AND FR88 AND Y: 300 RH AT FLOOR STRUCTURE (W2); REMOVED CORROSION ON FLOOR BEAM BTW FR 87 AND FR 88 AND Y: 300 RH BLEND OUT FROM ORIGINAL THICKNESS OF .063" WAS .026" WITH A REMAINING THICKNESS OF .036" WAS FOUND OUT OF LIMITS PER EMB 190 SRM 53-23-10AD/52 PAR 5 TABLE 101. REMOVED AND REPLACED FLOOR BEAM IAW EMB 190 SRM 51-42-01, SRM 51-43-03. (CONSIDERED AS A MAJOR REPAIR)