{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":1,"name":"Cave Exploration Society Inc","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/cave-exploration-society-inc"}],"relation":"is a"},{"group":"Owner","items":[{"count":1,"name":"Cave Exploration Society INC","note":"","unit":"aircraft registered to this organisation","url":"https://eflight.com/search?q=Cave Exploration Society INC"}],"relation":"owned by"},{"group":"Place","items":[{"count":4,"name":"Medford, MA","note":"","unit":"aircraft registered in this town","url":""},{"count":2649,"name":"Massachusetts","note":"","unit":"aircraft registered","url":"https://eflight.com/states/MA"}],"relation":"registered in"},{"group":"Record","items":[{"count":null,"name":"No NTSB accident or incident record under this tail number","note":"","unit":"","url":"https://eflight.com/aircraft/N513AT#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":null,"name":"Report filed on this aircraft: Battery, inoperative","note":"2004-01-06","unit":"","url":"https://eflight.com/systems/electrical"},{"count":null,"name":"Report filed on this aircraft: Connector, loose","note":"2003-05-01","unit":"","url":"https://eflight.com/systems/cabin"},{"count":null,"name":"Report filed on this aircraft: Governor, malfunctioned","note":"2002-12-28","unit":"","url":"https://eflight.com/systems/engine"}],"relation":"subject to"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"built_of":null,"id":"N513AT","maker":"Cave Exploration Society Inc","model":"WINGTRAONE","name":"Cave Exploration Society Inc WINGTRAONE N513AT","state":"MA","type":"aircraft","url":"https://eflight.com/aircraft/N513AT","year_built":null},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}