As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY CHECK FOUND SPLICE CORRODED AS MARKED @ CENTER OF FRAME 90. REMOVED CORROSION BY BLENDING AT CENTER SPLICE. FRAME 90. MATERIAL REMOVED: H-.010" NOMINAL .050" OUT OF LIMITS. REF EMB SRM 51-75-16 SRM 51-10-03 TOOLING TC1-66878-2 08-07-20 TC2-7449 09-17-20 TC2-7633 11-06-20 INSTALLED NEW AFT WET AREA CENTER FLOOR SPLICE PLATE AT FR90 REF EMB SRM 51-40-08.