As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND THE RIGHT INBOARD FLAP UPPER SKIN CRACKED FROM FASTENER ON INBOARD END. (COMPOSITE) MAINTENANCE REPAIRED RIGHT INBOARD FLAP UPPER SKIN IAW EMB 170 SRM 51-71-08. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.