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 BETWEEN FRAMES 85 AND 86. MAINTENANCE REMOVED AND REPLACED FLOORBEAM STRAP IAW EMB 170 SRM 51-40-02, 51-41-01 AND 51-43-01. A/C STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.