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 FLOOR SUPPORT AT FRAME 86 RIGHT BROKEN. MAINTENANCE REMOVED AND REPLACED FLOOR SUPPORT FAME 86 RIGHT IAW EMB 175 SRM 51-41-01. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK. DISREGARD R61A201209070468 ENTERED CORROSION IN ERROR.