As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THREE LAVS INOP, FLIGHT DIVERTED. LAVS AT 2R, 3L AND 4L INOP. NEED TOILETS REPLACED. SAMC REMARKS: BAD VACUUM SHUT OFF VALVES. PARTS: 120-9074 15800-029-3 (TOILET ASSY) 120-9075 15800-029-4 (TOILET ASSY). OP CHECKED AND LEAKED CHECK ALL THREE LAVS THAT WERE REPLACED. LAVS REPLACED WERE 2R, 3L, 4L.