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 THE AFT SERVICE DOOR SNUBBER. MAINTENANCE REMOVED AND REPLACED THE AFT SERVICE DOOR DAMPER IAW EMB 175 AMM 52-42-27. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.