What was found
LH WING CENTER FLAP RIB UPR FLANGE FOUND 4EA CRACKS AT RIB11 BETWEEN STGR2.8 AND REAR SPAR, RIB12 BETWEEN STGR2.8 AND REAR SPAR, AND RIB13 BETWEEN STGR2.7 AND REAR SPAR. COMPLIED WITH EA: 6-5750-T0379258 P1. TITLE: WING - FLIGHT SURFACES - LH CENTER FLAP CRACKS IN UPPER FLANGES OF RIBS 11, 12, 13, 18, 19, 25 AND 26 AT STR. 2.7 /2.8 - ALI 575306-01- 1A. REPAIRED THE LH WING CENTER FLAP RIB UPR FLANGE 4EA CRACKS AT RIB11 BETWEEN STGR2.8 AND REAR SPAR, RIB12 BETWEEN STGR2.8 AND REAR SPAR, AND RIB13 BETWEEN STGR2.7 AND REAR SPAR. THIS IS CATEGORY A REPAIR. MAJOR REPAIR IAW FEDEX GMM6-2-100. SEE WRI 57507925 FOR WORK DETAILS.