As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT FLOOR TO SIDEWALL TRANSITION PANEL, UPPER SURFACE HAS SEVERAL AREAS OF CORROSION. BS 727D-727H, STR 25-26L. ACFT GROUNDED. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53, FABRICATED NEW TRANSITION PANEL AND SPLICE AND INSTALLED IAW SRM 53-00-53-2R5.