As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOILET DOES NOT FLUSH, IN LAV NR 111 AIRPLANE ABOVE 16000FT ALTITUDE. SEE CABIN MAINTENANCE FORM FOR LOCATION CODES. LAV FLUSH INOP ON GROUND ALSO. BOWL IS EMPTY SUSPECT CLOGGED DUCT ALL THE OTHER LAVS CHECK OKAY. CLEANED WASTE LINE AND UNCLOGGED, WASTE SYSTEM. OP CHECKS GOOD.