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 727H - 727L, STR 25 - 26L. ACFT GROUNDED. REMOVED CORROSION FROM TRANSITION PANEL FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A. REMOVED, FABRICATED AND INSTALLED NEW TRANSITION AND SPLICE PANEL IAW SRM 53-00-53-R2-5.