As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, CRACK ON LH WING FIXED LEADING EDGE SLAT TRACK# 5 CUTOUT; TEMPORARY REPAIR WAS PERFORMED PER EMB- 190 EC E21-809-01 ETI-190-21-788 REV1 AND ETD 2021-190-023168 REVA (7500FC) REPLACED SKIN WITH 750FC REINSPECTS UNTIL REPLACEMENT.