What was found
DURING OP 16 MAINT CHECK, ON THE RT WING, HAD CRACK INDICATION ON WING SPAR CAP AT I/B FLAP HINGE FITTING, STA XRS164, LOWER I/B BOLT HOLE EXTENDED INTO LOWER RADIUS. REPLACED LOWER REAR SPAR CAP PER DOUGLAS DRAWING JO60165 AND MCD-AD-35.