Brake Hoses, Lines/piping, And Fittings problems of the 2008 Dodge Caravan

Vehicle is a shuttle van. Vehicle suddenly experienced loss of brake pedal firmness followed by the brake pedal going to the floor and not raising completely back up. Also experienced sudden idle speed drop followed by a near stall. Vehicle speed approximately 55mph. Found vacuum brake check valve cracked with the pipe extension to the vacuum brake hose snapped off. Plastic material of the valve itself had deteriorated, leaving a white chalky residue. Valve replaced and vehicle returned to normal operation.