What was found
DURING C-CHECK, FLOORBEAM AT BS 259.5 BETWEEN LBL 7.0 INCHES AND RBL 10.0 INCHES, FLOORBEAM WEB HAS CORROSION. DEFECT SIZE LENGTH - 17.0 INCHES. WIDTH - 2.0 INCHES. DEPTH - 0.050 INCH. REPAIRED FLOORBEAM WEB AT BS 259.5 BETWEEN LBL 8.75 AND RBL 13.875, IAW COOPESA EO COO-3-53-027-00 DATED 1-14-00. DOCUMENTED ON FAA FORM 8110-3. APPROVED AND SUBMITTED BY FAA DER DESIGNATION NR DERT 710167SW DATED 1-14-00. SEE COOPESA WO N1-0004-2-343, VAM-100NR 678. (X)