As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AN AREA OF CORROSION WAS FOUND PREVIOUSLY AT LT WING LOWER SKIN T/E AT RIB 13 AND A TEMPORARY REPAIRED ON EO E2-57MR-347R1. NOW DURING C-CHECK FINAL REPAIR IS ACCOMPLISHED BY FOLLOWING REPAIR INSTRUCTIONS (SRI) ISSUED BY ATR AND A SRAS TO APPROVE IT. C/A: WAITING FOR COMPLETION OF FINAL REPAIRS ON EO E2-57MR-403 FOR FURTHER DETAILS.