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 MAINTENACE FOUND THE LEFT WHEEL WELL FORWARD BULKHEAD CRACKED AT AILERON CABLE HOLES. MAINTENANCE REMOVED AND REPLACED THE LEFT FWD BULKHEAD RIB COMPLIMENT IAW EMB 175 SRM 51-42-01. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.