What was found
MAIN CARGO COMPARTMENT FLOOR BEAM UPPER CHORD HAS CORROSION ENTIRE LENGTH BS 1660 CHECKED LIMITS STA 1660 FLOORBEAM AT LBL 55. TO RBL 59 L=6.0 W = 2.0 AND D = .038, FOUND TO BE OUT OF ALLOWABLE LIMITS IAW SRM 53-00-51, FIG.101, DETAIL 3 . REMOVED AND REPLACED STA. 1660 FLOOR BEAM IAW SRM 51-40-02 , FABRICATED NEW FLOOR BEAM MAT. TYPE BAC 1518-338 BATCH NR 1922127 IAW DWG 146N5090. THIS IS A MAJOR REPAIR