Sometimes seemingly small problems take big solutions. Twin Commanders feature a creative flapper valve that seals the fuel tank, stopping fuel from siphoning out if the cap fails. The flapper valve and cap housing are all one unit. The springs that enable the flapper valve to “flap” sometimes wear out. The originals were cast aluminum, something that is no longer cost effective to produce. So Twin Commander Aircraft is currently working on a replacement housing that will be a relatively easy installation. The entire housing can be swapped out, and the part will feature new steel springs and other accessories. Parts will soon be available for every model. Information on ordering new flapper valves will be out shortly.
