What was found
LH WING CENTER FLAP RIB UPR FLANGE FOUND 4EA CRACKS AT RIB18 BETWEEN STGR2.8 AND REAR SPAR, RIB19 BETWEEN STGR2.7 AND REAR SPAR, AND RIB20 BETWEEN STGR2.8 AND REAR SPAR. COMPLIED WITH EA: 6-5750-T0380959 P1. TITLE: WING - FLIGHT SURFACES - LH CENTER FLAP CRACKS AT UPPER FLANGES OF RIBS 11, 12, 13, 18, 19, 20, 25, 26 AND 27 AT STR. 2.5 / 2.6 / 2.7 / 2.8 - ALI 575306-01-1A. REPAIRED LH WING CENTER FLAP RIB UPR FLANGE 4EA CRACKS AT RIB18 BETWEEN STGR2.8 AND REAR SPAR, RIB19 BETWEEN STGR2.7 AND REAR SPAR, AND RIB20 BETWEEN STGR2.8 AND REAR SPAR. THIS IS CATEGORY A REPAIR. MAJOR REPAIR IAW FEDEX GMM6-2-100. SEE WRI 57507207 FOR WORK DETAILS.