As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE A/C WAS IN FOR HEAVY CHECK FOUND LEVEL 2 CORROSION ON WASTE SERVICE DOOR AND HINGE. MX REMOVED AND REPLACED THE HINGE AND FOUND NO DAMAGE TO THE DOOR IAW EMB 170 SRM 51-44-02. CLEANED AND RESTORED TOP COAT IAW EMB 170 CMM 25-22-40 AND SRM 51-23-06. A/C STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.