As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, CORROSION WAS FOUND BEYOND LIMITS ON THE PRESSURE FLOOR SKIN LT SIDE BETWEEN 409 AND 128 TO 559, RBL 36 AND 45. MAINTENANCE IS REPAIRING THE PRESSURE FLOOR SKIN LT SIDE BETWEEN 409 AND 128 TO 559, RBL 36 AND 45 IAW EO. (K)