As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCI - FLT 264 - CMH-PHX - AIRCRAFT DIVERTED TO MCI DUE TO FAILURE OF ALL LAVS TO FLUSH. MCI RAMP PERSONNEL SERVICED LAVS. AIRCRAFT DEPARTED MCI AND SYSTEM FAILED AGAIN. PHX MAINTENANCE DISCONNECTED WASTE LEVEL TRANSMITTER. SYSTEM OPS CHECK OK. TRANSMITTER PLACED ON ORDER. AIRCRAFT RETURNED TO SERVICE. (M)