What was found
DURING HEAVY MAINTENANCE, CRACK RIB 17 FIXED LEADING EDGE INTERNAL AREA ON LT WING. RESOLVED ON W/O: 1051864 TASKCARD: NR-00011, REF AEROMAN NR 2020-278425 WO 2020 227/1. REMOVED AND REPLACED NEW RIB 17 LOCATED AT FIXED LEADING EDGE INTERNAL AREA ON LT WING AND FASTENERS, IAW E190 SRM 51-40-08, DWG 190-31005-405 AND DWG 190-31249-405.