As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF PREVIOUS L/P, MEL 38-02, AFTER T/O, LAVS ON BOARD A/C STILL DID NOT FUNCTION/OPERATE AT ALL, AS PER MEL GUIDELINES. UNABLE TO COMPLETE FLIGHT TO DESTINATION. AIR RETURN TO EWR. INSPECTED P91 PANEL FOR DDPG COMPLIANCE AND FOUND C/B C-11(VAC WASTE CONT) PULLED AND COLLARED. UNCOLLARED AND RESET C-11 C/B. PULLED AND COLLARED C/B F-2(VAC WASTE BLOWER) PER DDPG.