What was found
DURING A-CHECK INSP, CRACK WAS FOUND AT BS 318 LBL 20 AREA. THE CRACK WAS LOCATED ON THE TOP PANEL ALONG THE EDGE OF THE STIFFENER (PN: 65B13797-50), THE CRACK RUN FROM FWD TO AFT AND THE LENGTH OF IT WAS APPROX 1.5 INCH (FIG 1). (REPAIR WAS ACCOMPLISHED IAW PROPOSAL REPAIR (HKA-TLS-10-0018-01C), SRM 53-10-04, FIG 119 AND SR 1-1769311396 (FIG 2) AND IT WAS APPROVED BY FAA 8100-9 DATED 29 DEC, 2010 (FIG 3). IAW FAA FORM 8100-9, THE REPAIR IS TIME LIMITED REPAIR, AND NEED PERMANENT REPAIR AT 22,000 TFC IAW PART 3 OF EO 4753A458RB (REF SB 747-53A2562R2).