780001-500-303, 780001-500-304, 780001-500-305, 780001-500-306 INBD & OTBD Vortex Generators [email protected] +1 (214)738-1466 ATSMRO.COM 780001-500-303 (INBD) 780001-500-304 (INBD) 780001-500-305 (OTBD) 780001-500-306 (OTBD) Reduces whining noise developed when aircraft is in flight. 1 Airbus A319 & A320 ATS STC 57 & 28 • Installs on fuel vent panel by utilizing existing fastener holes • Approved by FAA and EASA • Has no impact to the fuel over-pressure protector ventilation system • Reduces the ‘whining’ noise developed when aircraft is in flight • Installs on fuel vent panel by utilizing existing fastener holes • Four total needed per plane; engineered for each location • 'Per plane' kit option available