As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN FOR HEAVY CHECK, LEVEL 2 CORROSION WAS FOUND ON FLOORBEAM O/B OF RIGHT LONG BEAM AT FRAME 14. MAINTENANCE REMOVED AND REPLACED FLOORBEAM AT FRAME 14 IAW EMB 170 SRM 51-41-02, 51-43-01, 51-40-02 & 51-41-01. A/C IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.