What was found
LH WING CENTER FLAP RIB UPPER FLANGE FOUND 3EA CRACKS AT RIB26, RIB27 BETWEEN STGR2.6 AND REAR SPAR COMPLIED WITH FEDEX EA 6-5750-T0378625 P1 REPAIRED THE LH WING CENTER FLAP CRACKED RIB UPPER FLANGE 3EA CRACKS AT RIB26, RIB27 BETWEEN STGR2.6 AND REAR SPAR. TITLE: WING - FLIGHT SURFACES - LH CENTER FLAP CRACKS IN UPPER FLANGES OF RIBS 17, 26 AND 27 AT STR. 2.6 / 2.7 / 2.8 - ALI 575306-01-1A. THIS IS CAT A REPAIR. MAJOR REPAIR IAW FEDEX GMM6-2- 100.