What was found
COMPLY WITH SCHEDULED MAINTENANCE CODE: RA34968-601R-57-21-1227 N904EV OP 139-DTI - INSPECT RH WING DRAIN HOLE ON THE AFT LOWER WING PLANK AT WS 85.50 NDI PER NDTM PART 6 CHAP 57-21-101, PART NUMBER: - , SERIAL NUMBER: 7628, POSITION: (C-CHECK RO 6/11/2021) REPAIRED IAW REO 601R-57-21-3448 REV -- DATED 2021-04-14. COMPLETED TASK CARD 51-900-1003-SKY AND ATTACHED COMPLETED FORM 337. NO WEIGHT CHANGE NOTED.