As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALL LAVATORIES NO MECHANICAL OR VACUUM FUNCTION IN FLIGHT. MAC METER INITIATED FOR WITH VENDOR. MAC RELATED WORK ORDER 000000002136580 AND PRTR FOUND C/B OUT ON P91 PANEL, RESET AND PERFORMED DUMP AND SEVERAL FLUSHES AND LAV OPS CHECK GOOD, IAW FIM 38-30-00-810-811.