{"as_of":"2026-11-10","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Aircraft","items":[{"count":null,"name":"N123SD: not on the register today","note":"the record of its deregistration","unit":"","url":"https://eflight.com/aircraft/N123SD"},{"count":9,"name":"Engine: Hirth F-23 LW","note":"as the NTSB recorded it","unit":"aircraft carry this series today","url":"https://eflight.com/engines/hirth-f-23"}],"relation":"involved"},{"group":"Place","items":[{"count":1440,"name":"Accidents and incidents in Utah","note":"263 in the last ten years","unit":"since 1982","url":"https://eflight.com/accidents?state=UT"},{"count":8353,"name":"Utah","note":"","unit":"aircraft registered","url":"https://eflight.com/states/UT"}],"relation":"at or near"},{"group":"Record","items":[{"count":1,"name":"Other NTSB records under N123SD","note":"the number may have belonged to another aircraft at the time","unit":"records","url":"https://eflight.com/accidents/WPR13FA399#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":"Spanish Fork","date":"2013-09-06","fatalities":1,"id":"WPR13FA399","name":"Amateur-built SD-1 TG accident near Spanish Fork, Utah, September 6, 2013","state":"UT","type":"ACC","url":"https://eflight.com/accidents/WPR13FA399"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}