What was found
MAIN MID CABIN FLOOR SUPPORT INTERCOSTAL HAS CORROSION BETWEEN BS680 AND BS700, RBL 50 ON UPPER SURFACE. REMOVED AND REPLACED MAIN CABIN FLOOR SUPPORT INTERCOSTAL AT STA 680 TO 700 RBL50 IAW SRM 51-40-02 PG 1-10 AND DWG 143N 5845.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MAIN MID CABIN FLOOR SUPPORT INTERCOSTAL HAS CORROSION BETWEEN BS680 AND BS700, RBL 50 ON UPPER SURFACE. REMOVED AND REPLACED MAIN CABIN FLOOR SUPPORT INTERCOSTAL AT STA 680 TO 700 RBL50 IAW SRM 51-40-02 PG 1-10 AND DWG 143N 5845.