As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*** WHILE AIRCRAFT WAS OUT OF SERVICE FOR HEAVY CHECK *** LEVEL 2 CORROSION WAS FOUND ON BEAM 170-65669-004 @ AFT CABIN WET AREA. BEAM WAS REMOVED AND REPLACED IAW EMB170/175 SRM 51-41-01 AND 51-43-03 REV 45. AIRCRAFT REMAINS OUT OF SERVICE FOR HEAVY CHECK COMPLETION.