its enplanements, surpassing the U.S. benchmark. It also noted that the cumulative economic activity for the airport was approximately $736 million. Approaches The airport can be accessed from I-684's Exit 2 onto New York State Route 120. More directly, the terminals are accessed by NY Route 135. IATA code The IATA code for Westchester County Airport is HPN. The origins of this code are in dispute. Some believe it is derived from the name of the city, White Plains (IATA codes normally do not begin with W because those are reserved for radio signals), while others maintain the IATA code represents the first letter of the airport's three neighboring communities, Harrison, Purchase, and North Castle. The full ICAO code for Westchester County Airport is KHPN. Facilities and aircraft Westchester County Airport covers 702 acres (284 ha) at an elevation of 439 feet (134 m) above mean sea level. It has two asphalt paved runways: 16/34 is 6,549 by 150 feet (1,996 x 46 m) and 11/29 is 4,451 by 150 feet (1,357 x 46 m). Runway 29's threshold is displaced 1,297 feet (395 m) due to trees obstructing the approach path. The trees (in Connecticut) are 37 ft (11 m) tall and 370 ft (113 m) from the end of the runway. Westchester County Airport has several fixed-base operators (FBOs), including Signature Flight Support East and West, Ross Aviation East and West, NetJets, and Million Air. Although varied in services offered, the FBOs at Westchester County Airport provide Jet A and 100LL fueling services, repairs and maintenance, aircraft tiedowns, de-icing, United States Customs, and other aircraft services. Some of the FBOs are particularly luxurious, providing limousine transportation services and deluxe surroundings. There are three flight schools. Performance Flight operates out of the Million Air at Hangar M, while Academy of Aviation operates out of Ross Aviation West at Hangar T. Wings Air offers helicopter flight training out of Hangar T. Additionally, the Westchester Flying Club, a private organization of pilots, is based at the airport as well as the Westchester Aviation Association, a not-for-profit organization that promotes aviation education and understanding on the part of government authorities and the public. Westchester County Airport is also the home of the New York Wing Civil Air Patrol headquarters, the Lt. Anthony L. Willsea Cadet Squadron (NY-422). Aircraft Rescue Fire Fighting (ARFF) is provided by Airport Operations Crews. The airport owns three ARFF