A latch indicator system for a trolley bay is disclosed. The system includes a door that includes a latch indicator window. The system further includes an indicator assembly coupled to the door configured to contact a turnbutton then the door is closed and indicate a latched state or an unlatched state of the turnbutton. The indicator assembly includes a latch signal configured to be visible through the latch indicator window when the turnbutton is in the latched state. The indicator assembly further includes an unlatch signal configured to be visible through the latch indicator window when the turnbutton is in the unlatched state. The system further includes a wedge coupled to the flag assembly configured to contact the turnbutton when the turnbutton is in the unlatched state, where upon contact, the flag assembly is translated so that the unlatch signal is visible through the latch indicator window.