What was found
LCQ - MAJOR REPAIR - DURING C-10 CHECK INTERGRANULAR CORROSION WAS FOUND ON FLOOR BEAM UPPER CAP AT BS 1640, BL 0 TO LBL 5. MAINTENANCE REMOVED CORROSION ON FLOOR BEAM AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS; REMOVED CORRODED UPPER FLOOR BEAM TEE CAP BS 1640, LBL 65 TO RBL 55; FABRICATED 2 EACH REPAIR ANGLES, 2 EACH STRAPS, AND A NEW REPLACEMENT TEE CHORD; INSTALLED REPAIR PARTS IAW B757-200 SRM 53-00-51, PG. 209-213.