What was found
GYR - DURING C10 DISCOVERED LT TRAILING EDGE FLAP, AFT FLAP AREA, DISBOND AT THE INBOARD END, UPPER SURFACE AT WBL 71.0L. MAINTENANCE REMOVED DELAMINATED PREVIOUS REPAIR PLY, CLEANED AND PREPPED AREA FOR BONDING OF REPLACEMENT REPAIR PLIES IAW BOEING 757-200 SRM 51-70-17. APPLIED REPAIR PLIES AND BONDED TO THE LT TRAILING EDGE FLAP, UPPER SURFACE, AT WBL 71.0L IAW BOEING 757-200 SRM 51-70-17-0G.