As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING IMBV INSPECTION, FOUND THE TOILET WASTE DRAIN VALVE CUP CORRODED. AIRCRAFT WAS REMOCED FROM SERVICE FOR IMBV INSPECTION AND WILL BE RETURNED TO SERVICE AFTER IMBV INSPECTION. REMOVED AND REPLACED THE TOILET WASTE DRAIN VALVE CUP IAW EMB 145 SRM 51-40-02, 51-20-01 AND 51-20-03. AIRCRAFT WILL BE RETURNED TO SERVICE AFTER IMBV INSPECTION.