MEANS FOR HANDLING GASEOUS FUEL

A system (200; 300; 400; 500; 600) for an aircraft engine (100) includes an accessory box (220) and a fuel accessory (116) located in an interior space (222) within the accessory box (220), where a vent (230; 330; 430; 530; 630) is defined through a wall (226, 242) of the accessory box (220). In embodiments, the vent (230... 630) includes a plurality of holes or slots (236; 340) in an outer wall (226) of the accessory box (220) for passage of gaseous fuel from the interior space (222). In embodiments, the vent (230... 630) is configured for passive ventilation of the interior space (222).