What was found
LCQ - MAJOR REPAIR - DURING C-10 CHECK A .5 INCH CRACK WAS FOUND IN INTERCOSTAL AT RIGHT CABIN SIDEWALL BS 660, RBL 70, WL 231, AT R-2 DOOR FRAME. MAINTENANCE REMOVED CRACKED INTERCOSTAL AT RIGHT CABIN SIDEWALL BS 660, RBL 70, WL 231; FABRICATED A NEW REPLACEMENT INTERCOSTAL AND CLIP; INSTALLED REPAIR PARTS IAW T/C M1C53612.