As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C CHECK INSPECTION, THE AVIONICS BAY FLOOR PANEL 141ALF SUPPORT ANGLE ON AFT SIDE OF BS 280 FRAME WAS CORRODED. MX REMOVED ANGLE AND INSTALLED NEW ANGLE IAW SRM 51-42-06-001-001-A01 AND DWG CC670-34010. ACFT WAS APPROVED FOR RETURN TO SERVICE.