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 INTERIOR FUSELAGE CORROSION FOUND ON FR 17 SHEAR CLIP BTWN STR 28 AND 27R. MX REPLACED SHEAR CLIP PN 170-03335-001 IAW SRM 51-41-02, 51-42-03. SEE AAR NRC # 4500952-1000-0143 FOR WORK PERFORMED. AC WAS RTS.