{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Aircraft","items":[{"count":null,"name":"N400AH on the register today","note":"the tail number may have moved to another aircraft since","unit":"","url":"https://eflight.com/aircraft/N400AH"},{"count":217,"name":"Hiller UH-12","note":"the model family and its accident history","unit":"registered today","url":"https://eflight.com/models/hiller/uh-12"},{"count":242,"name":"Hiller","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/hiller"},{"count":null,"name":"Engine: Lycoming TIVO-540-A2A","note":"as the NTSB recorded it","unit":"","url":""}],"relation":"involved"},{"group":"Place","items":[{"count":null,"name":"Vernal Regional","note":"nearest airport","unit":"","url":"https://eflight.com/airports/VEL"},{"count":1440,"name":"Accidents and incidents in Utah","note":"264 in the last ten years","unit":"since 1982","url":"https://eflight.com/accidents?state=UT"},{"count":8355,"name":"Utah","note":"","unit":"aircraft registered","url":"https://eflight.com/states/UT"}],"relation":"at or near"},{"group":"Record","items":[{"count":2,"name":"Other NTSB records under N400AH","note":"the number may have belonged to another aircraft at the time","unit":"records","url":"https://eflight.com/accidents/DEN86LA016#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":"Vernal","date":"1985-11-01","fatalities":0,"id":"DEN86LA016","name":"Hiller UH-12E accident near Vernal, Utah, November 1, 1985","state":"UT","type":"ACC","url":"https://eflight.com/accidents/DEN86LA016"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}