What was found
THE FLIGHT CREW NOTED A STRONG FUEL ODOR IN THE AFT CABIN, UPON INVESTIGATION, FUEL WAS FOUND ON THE AFT EQUIPMENT ACCESS DOOR AND UNDER THE APU. THE APU SHROUD WAS OPENED AND THE FUEL MANIFOLD WAS REMOVED AND IT WAS DISCOVERED TO HAVE A SMALL PINHOLE IN ONE OF THE MAIN FUEL LINES WHICH WAS LEAKING ONTO THE APU AND CAUSING THE FUEL ODOR. THE MANIFOLD WAS REPLACED AND NO LEAKS WERE FOUND. THE AIRCRAFT WAS RETURNED TO SERVICE. (K)