EMERGENCY PARK BRAKE SYSTEM

An emergency park brake system of an aircraft may include a user input interface configured to receive actuation input from a user. The emergency park brake system may also include a first displacement sensor and a second displacement sensor that are both coupled to the user input interface. The first displacement sensor may be configured to detect displacement of the user input interface and generate a first status of the user input interface and the second displacement sensor may be configured to also detect displacement of the user input interface and generate a second status of the user input interface. The emergency park brake system may also include a controller having a processor and memory. The controller may be configured to determine an emergency park brake condition.