As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISHMENT OF #2 ENGINE CHANGE IN ATL, MTC DISCOVERED MULTIPLE DAMAGE TO THE RHS FUSELAGE SKIN. THE SUBJECT DAMAGE IS LOCATED BETWEEN FR 500E AND FR 500F AT STR 21R. DAMAGE REPAIRED PER ERA 634484-14. (LOG 1600344 - AIRCRAFT WAS GROUNDED).