What was found
REFERENCE NON ROUTINE NR N0195. DURING C4 S1 C-CHECK INSP NOTED CABIN MAIN FLOOR EXTRUSION CORRODED ON TOP AND BOTTOM SURFACE LOCATED BETWEEN FR69 AND FR70, 48 INCHES RT OF CTR LINE. MX R & R EXTRUSION IAW SRM 51-72-11.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
REFERENCE NON ROUTINE NR N0195. DURING C4 S1 C-CHECK INSP NOTED CABIN MAIN FLOOR EXTRUSION CORRODED ON TOP AND BOTTOM SURFACE LOCATED BETWEEN FR69 AND FR70, 48 INCHES RT OF CTR LINE. MX R & R EXTRUSION IAW SRM 51-72-11.