What was found
DURING HEAVY CHECK MAINTENANCE FOUND CENTER FUSELAGE III, FLOOR STRUCTURE, TOP UPPER SHEET CORRODED AT FR 85L TO FR 86L, LBL12. REPLACED CFIII FLOOR STRUCTURE TOP UPPER SHEET AT FR85 FO FR86, LBL 12 WITH NEW IAW SRM 51-43-03.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK MAINTENANCE FOUND CENTER FUSELAGE III, FLOOR STRUCTURE, TOP UPPER SHEET CORRODED AT FR 85L TO FR 86L, LBL12. REPLACED CFIII FLOOR STRUCTURE TOP UPPER SHEET AT FR85 FO FR86, LBL 12 WITH NEW IAW SRM 51-43-03.