What was found
AFT RIGHT LAV INOP RUNS CONTINUOUSLY COULD NOT DUPLICATE FAULT ON GROUND,, ITEM IS NIS IN EWR, DEACTIVATED LAV M IAW AMM 38-32-00-042-022, PULLED CANNON PLUG ON ASSEMBLY AS REQUEST BY TOMC **THIS ITEM IS CHRONIC. PREVIOUS WRITEUPS ARE FOR EITHER SPRAY BUT NO FLUSH OR FLUSH BUT NO SPRAY. REQUESTING TO PLACE LAV M ON MEL PLACED LAV M ON MEL C/W DDP ASSEMBLY REF AMM 38-32-01-401. SEE ALSO EA3830-01894 OP10. FOUND CONTINOUS RINSE VALVE STUCK. RINSE VALVE RESEATED. OPS CHECK NORMAL.