What was found
DURING HEAVY CHECK MAINTENANCE FOUND CENTER FUSELAGE III, FLOOR STRUCTURE, GUSSET PLATE CORRODED AT FR90R, RBL12. REPLACED CFIII FLOOR STRUCTURE GUSSETT PALTE AT FR90, RBL12, WITH NEW IAW SRM 51-41-02
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, GUSSET PLATE CORRODED AT FR90R, RBL12. REPLACED CFIII FLOOR STRUCTURE GUSSETT PALTE AT FR90, RBL12, WITH NEW IAW SRM 51-41-02