As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
* LH UPPER SURFACE OF PRESSURE FLOOR SILL HAS MULTIBLE AREA'S OF CORROSION. CIRCLED WITH GREASE PENCIL (C-CHECK) RO 1/29/2021 REMOVED CORROSION ON LH UPPER SURFACE OF PRESSURE FLOOR SILL, WITHIN LIMITS REF REO 601R-53-41-666 REV -C DATE 2012-11-6. COMPLIED WITH TASK CARD 51-900-1003-SKY