As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AC WAS IN FOR HVY CK FOUND CF3 FLOOR STRUCTURE CORROSION FOUND ON GUSSET PLATE RH SIDE AT FR 90. REPLACED GUSSET PLATE PN 170-60259-001 IAW SRM 51-41-02. SEE AAR NRC# 4500889-1000-0116 FOR WORK PERFORMED. AC REMAINS IN YQG FOR COMPLETION.