What was found
MCN - MAJOR REPAIR - DURING C-18 CHECK A 1/2" CRACK WAS FOUND IN THE AFT CARGO DOORWAY FORWARD DOOR CUTOUT FRAME BS 827, RBL 43, WL 164. MAINTENANCE REMOVED THE THRESHOLD WEB, CLIP FROM STRINGER 27 R/H, INTERCOASTAL ASSEMBLY, 3 EACH STIFFNERS, AND THE CRACKED FRAME AT BS 827, RBL 43, WL 164. FABRICATED REPAIR FRAME, 2 EACH SPLICE ANGLES, INNER DOUBLER, 2 EACH TEE ANGLES, AND A SUPPORT ANGLE, AND INSTALLED REPAIR PARTS IAW AWA E.O. 53-10-01 (REV H).