What was found
DURING A MBV INSPECTION, THE TOILET WASTE DRAIN SUPPORT WAS FOUND CORRODED. REMOVED DAMAGED SUPPORT AND CLEANED THE AREA. POSITIONED NEW SUPPORT P/N 145-25599-001 MARKED AND DRILLED FASTENERS HOLES. REMOVED NEW SUPPORT, CLEANED AND TREATED THE SUPPORT AND THE REPAIR AREA. WORK DONE IAW 145 SRM (SRM EMB 145/1142 REV 39) CHAPTERS 51-40-02, 51-20-03, 51-20-01, 51-40-04 AND 51-40-06. AIRCRAFT RETURNED TO SERVICE.