As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ALL LAVATORIES WILL NOT FLUSH. FLIGHT DIVERTED TO CLT LANDING SAFELY. MAINTENANCE REPLACED THE VACUUM WASTE SYSTEM LOGIC CONTROL MODULE PER AMM 38-33-03-400-801 (AALA202212207260) AND WASTE TANK CONTINUOUS LEVEL SENSOR J3 PER AMM 38-33-02-400-801 (AALA202212205147). ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.