{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Aircraft","items":[{"count":null,"name":"N55AD on the register today","note":"the tail number may have moved to another aircraft since","unit":"","url":"https://eflight.com/aircraft/N55AD"},{"count":179,"name":"Engine: Lycoming O-320-A2B","note":"as the NTSB recorded it","unit":"aircraft carry this series today","url":"https://eflight.com/engines/lycoming-o-320-a2b"}],"relation":"involved"},{"group":"Place","items":[{"count":null,"name":"Willow Airport","note":"departed from","unit":"","url":"https://eflight.com/airports/UUO"},{"count":5932,"name":"Accidents and incidents in Alaska","note":"826 in the last ten years","unit":"since 1982","url":"https://eflight.com/accidents?state=AK"},{"count":9146,"name":"Alaska","note":"","unit":"aircraft registered","url":"https://eflight.com/states/AK"}],"relation":"at or near"},{"group":"Record","items":[{"count":2,"name":"Other NTSB records under N55AD","note":"the number may have belonged to another aircraft at the time","unit":"records","url":"https://eflight.com/accidents/ANC04LA045#others"}],"relation":"related to"},{"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":"Big Lake","date":"2004-04-23","fatalities":0,"id":"ANC04LA045","name":"Arctic Aircraft Corp. S-1B2 accident near Big Lake, Alaska, April 23, 2004","state":"AK","type":"ACC","url":"https://eflight.com/accidents/ANC04LA045"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}