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 CORROSION FOUND ON CENTER FUSELAGE 3 LONGITUDINAL FLOORBEAM AT FR 88 RBL 9. MX REPLACED PN 170-65669-004 CENTER FUSELAGE 3 LONGITUDINAL FLOORBEAM CLIP IAW SRM 51-43-01. AC REMAINS IN YQG FOR COMPLETION. SEE NRC # 4500442-1000-0045 FOR WORK DETAILS.