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 FLOOR SUPPORT SHEAR PANEL AT FR 88 AND RBL9. REPLACED SHEAR PANEL PN 170-91919-001 IAW SRM 51-42-01. SEE AAR NRC# 4500901-1000-0034 FOR WORK PERFORMED. AC REMAINS IN YQG FOR COMPLETION.