"Port-au-Prince's small airport is filled to capacity and US air traffic controllers have taken charge of air traffic control to help manage the influx of planes. However because of fuel shortages,aircraft are clogging up the tarmac." BBC NEWS. Must be a Herculean task trying to fly in,park,unload and take off with very little fuel on board. An Air Traffic Controller's nightmare. The Control Tower was damaged in the earthquake. Americans must be using U.S. Army Air Traffic Control.