What was found
LH WING CENTER FLAP RIB UPR FLANGE FOUND 2EA CRACKS AT RIB18 BETWEEN STGR2.8 AND REAR SPAR, AND RIB19 BETWEEN STGR2.8 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 2EA CRACKS AT RIB18 BETWEEN STGR2.8 AND REAR SPAR, AND RIB19 BETWEEN STGR2.8 AND REAR SPAR. THIS IS CATEGORY A REPAIR. MAJOR REPAIR IAW FEDEX GMM6-2-100. SEE WRI 57507925 FOR WORK DETAILS.