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 REPLACED LEFT WING RIB 10 CRACKED. MAINTENANCE REMOVED AND REPLACED THE LEFT WING RIB 10 IAW EMB 170 SRM 51-40-02, 51-43-01, 51-43-03. "MAJOR REPAIR" THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.