As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O FIRST CLASS AND RT AFT LAV INOP. AFT WASTE SHUT DOWN. REPLACED AFT WASTE TANK LOGIC CTL MODULE, OPS NORMAL. ALSO FOUND AFT RT-R2- LAV VLV STUCK OPEN. ABLE TO CLOSE SAME MANUALLY, CONNECTED FLUSH SWITCH AND INOPED LAV. NEEDS NEW TOILET. FWD MCO AND PLACARD PER MEL 25-20-01.