{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Aircraft","items":[{"count":null,"name":"N71DM on the register today","note":"the tail number may have moved to another aircraft since","unit":"","url":"https://eflight.com/aircraft/N71DM"},{"count":null,"name":"N521BC on the register today","note":"the tail number may have moved to another aircraft since","unit":"","url":"https://eflight.com/aircraft/N521BC"},{"count":40,"name":"Yakovlev YAK-55","note":"the model family and its accident history","unit":"registered today","url":"https://eflight.com/models/yakovlev/yak-55"},{"count":230,"name":"Yakovlev","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/yakovlev"},{"count":3077,"name":"Engine: Continental IO-550","note":"as the NTSB recorded it","unit":"aircraft carry this series today","url":"https://eflight.com/engines/continental-io-550-series"},{"count":null,"name":"Engine: Vendenyev M14P","note":"as the NTSB recorded it","unit":"","url":""}],"relation":"involved"},{"group":"Place","items":[{"count":null,"name":"Hammonton Municipal","note":"nearest airport","unit":"","url":"https://eflight.com/airports/N81"},{"count":null,"name":"South Jersey Regional","note":"departed from","unit":"","url":"https://eflight.com/airports/VAY"},{"count":1187,"name":"Accidents and incidents in New Jersey","note":"134 in the last ten years","unit":"since 1982","url":"https://eflight.com/accidents?state=NJ"},{"count":3020,"name":"New Jersey","note":"","unit":"aircraft registered","url":"https://eflight.com/states/NJ"}],"relation":"at or near"},{"group":"Analytics","items":[{"count":null,"name":"Accidents over time since 1982","note":"","unit":"","url":"https://eflight.com/analytics/accidents-over-time"},{"count":null,"name":"Accidents by phase of flight, weather and hour","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-phase"},{"count":null,"name":"The accident map","note":"","unit":"","url":"https://eflight.com/analytics/accident-map"}],"relation":"counted in"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"city":"Hammonton","date":"2011-08-20","fatalities":1,"id":"ERA11FA468","name":"Amateur-built LANCAIR IV P and Yakovlev YAK-55M mid-air collision near Hammonton, New Jersey, August 20, 2011","state":"NJ","type":"ACC","url":"https://eflight.com/accidents/ERA11FA468"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}