What was found
1. 1EA CRACK (15MM) WAS FOUND AT R/H WING CENTER FLAP RIB25 AFT AREA OF TOP SURFACE RIB FLANGE. 2. 2EA CRACKS (5MM & 20MM) WERE FOUND AT R/H WING CENTER FLAP RIB26 AFT AREA OF TOP SURFACE RIB FLANGE. 3. 1EA CRACK (50MM) WAS FOUND AT R/H WING CENTER FLAP RIB27 AFT AREA OF TOP SURFACE RIB FLANGE. ACCOMPLISHED RIB FLANGES REPAIR AT RIB 25~26, S-2.7~S-2.8 AND RIB 26~27, S-2.8~REAR SPAR AND EXTERNAL DOUBLER REPAIR AT RIB 25~27, S-2.2~REAR SPAR I.A.W FEDEX EA NO:T6-5750- T0379651 P1, SEQ NO:776 TITLE: WINGS - FLIGHT SURFACES - RH CENTER FLAP - CRACKS IN UPPER FLANGES OF RIBS 25, 26 AND 27 THE REPAIR CLASSIFIED AS CAT A MAJOR PER GMM 6-2- 100.