As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OP 15 MAINT CHECK FOUND CORROSION ON COCKPIT FLOOR PANEL, STA 149 AT RT EDGE LONGERON 18R. REMOVED CORRODED MEMBRANE AND REPLACED WITH 0.032 7075T6 PER SRM 53-11-1 FIG 11. INSTALLED DOUBLER ON MEMBRANE SEAM AREA PER SRM 53-01 FIG 2.