What was found
DURING C4 CHECK. CABIN FLOOR SUPPORT CORRODED BETWEEN BS 1300 AND 1350 AT LBL 56. R & R FLOOR SUPPORT IAW SRM 51-10-02, 53-00-51-1A & 51-40-02 CORROSION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING C4 CHECK. CABIN FLOOR SUPPORT CORRODED BETWEEN BS 1300 AND 1350 AT LBL 56. R & R FLOOR SUPPORT IAW SRM 51-10-02, 53-00-51-1A & 51-40-02 CORROSION.