What was found
LH WING CENTER FLAP RIBS UPR FLANGE FOUND 5EA CRACKS AT RIB25 BETWEEN STGR2.7 AND REAR SPAR, RIB26 BETWEEN STGR2.7 AND REAR SPAR, RIB27 BETWEEN STGR2.8 AND REAR SPAR COMPLIED WITH EA 6-5750-T0386614 REPAIRED THE LH WING CENTER FLAP RIB UPR FLANGES 5EA CRACKS OF RIB25, 26 AND 27 BETWEEN STGR2.7 AND REAR SPAR. TITLE: WING - FLIGHT SURFACES - LH CENTER FLAP CRACKS IN UPPER FLANGES OF RIBS 11, 15, 16, 17, 18, 19, 20, 25, 26 AND 27 AT FRONT SPAR AND STR 2.7 / 2.8. THIS IS A CAT A REPAIR. MAJOR REPAIR IAW FEDEX GMM 6-2-100. SEE WRI 57507285 FOR WORK DETAILS.