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 LEFT WING TRAILING EDGE RIB 10 CRACKED. MAINTENANCE REMOVED AND REPLACED RIB 10 ON THE LEFT WING IAW EMB 170 SRM 51-43-01 AND 51-43-02. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.