What was found
DURING HEAVY MAINTENANCE, REF NDT 57-40-00-211-802, CRACK RIB 17 WING MAIN BOX LEADING EDGE AREA LT WING, REF AEROMAN WO 2020-388/1, NR 2020-360940. REMOVED AND REPLACED RIB 17 LOCATED LEADING EDGE ON LT WING, IAW E190 SRM 51-40-08 DWG 190-31005-409.