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 CORROSION ON CENTER FUSELAGE 3 FLOOR STRUCTURE MID SHEAR PANEL AT FR 87. AAR MX REPLACED PN 170-65928-001 CENTER FUSELAGE 3 FLOOR STRUCTURE MID SHEAR PANEL AT FR 87 IAW SRM 51-42-01. SEE AAR NRC # 4500861-1000-0033 FOR WORK PERFORMED. AC REMAIND IN YQG FOR COMPLETION.