As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLOOR SUPPORT- CONDITION: CORROSION LOCATION: INSIDE R4 DOOR, STA 1675-1679, RBL 50. REMOVED CORROSION CHECKED LIMITS PER B757 SRM 53-00-04 FIG 101 FOUND TO BE OUT OF LIMITS. DRILLED UP NEW SUPPORT ANGLE REF DWG BAC DWG 146N5230. REPLACED SUPPORT REF DWG BACDWG 146N5230.