What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND THE LEFT WHEEL WELL FORWARD BULKHEAD UPPER ATTACH ANGLE CRACKED. MAINTENANCE REMOVED AND REPLACED THE LEFT WHEEL WELL FORWARD BULKHEAD ATTACH ANGLE IAW EMB 175 SRM 51-43-01, 51-42-01, 51-41-01, AND 51-20-00. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.