Bottom door on Magic Chef wall oven

I bought a used Magic Chef 24" gas wall oven (S/N 14415999SB) that I thought was in great condition. That is, until the wife insisted that the bottom (broiler) door is supposed to stay in the down (fully open) position. It will stay in the partially open position, but not the down position. Does anyone know if it’s supposed to stay in the down position, and if so, do you have any suggestions as to how to fix it?

Thanks for your assistance.