What was found
DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND CRACK ON RT WING RIB, OUTBOARD OF FLAP CENTER HINGE, WS 99.510. COMPLETED REPAIR TO WING TRAILING EDGE RIB STATION 98.38 BY BLENDING OUT DAMAGE. INSTALLED REPAIR DOUBLER P/N 27-31086-022. ALSO, INSTALLED DOUBLER ONTO RIB P/N 27-31085-024, IAW 57-90-10 FAC SRM AND FAC DRAWING 27C36075. (M)