Premium research interface

The modern interface for aviation safety intelligence.

Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.

63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Featured Report

Loading…

Loading featured report…

Loading…
Open Report

Safety trends by operating rule

Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.

Loading trend charts…

Browse the aviation graph

Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.

Last Data Update

By Decade

By Month

Aircraft Manufacturer

More manufacturers

Airports

More airports

Operators

More operators

About

Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.

The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.

FAQs

NTSB Report

October 27, 1986 · Cessna 172M · N9051H

Richardton, ND

Overview

Report Status
Preliminary report
Event Type
Accident
Date
October 27, 1986
Injury Outcomes
3 injuries (1 serious injury, 2 minor injuries)
Location
Richardton, ND
Aircraft
Cessna 172M
Tail Number
N9051H
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
DEN87LA010

THE PLT ATTEMPTED A LANDING ON AN UNLIGHTED DIRT STRIP AT DUSK. HE STATED HE INTENTIONALLY FLEW LOW BECAUSE IT WAS GETTING DARK. ON FINAL APCH ACFT STRUCK TREES AND THEN IMPACTED THE TERRAIN, NOSING OVER.

Full Narrative

THE PLT ATTEMPTED A LANDING ON AN UNLIGHTED DIRT STRIP AT DUSK. HE STATED HE INTENTIONALLY FLEW LOW BECAUSE IT WAS GETTING DARK. ON FINAL APCH ACFT STRUCK TREES AND THEN IMPACTED THE TERRAIN, NOSING OVER.

Flight

Event TypeAccident
Event Time17:20 MST
Nearest Airport1nm E
Runway27
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 172M
Tail NumberN9051H
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-E2D · Reciprocating · 150
Seats4

People & Injuries

Injury Summary3 injuries (1 serious injury, 2 minor injuries)
Fatal0
Serious1
Minor2
Uninjured0
Total3
Crew 1Age 68 · Third Class

Conditions

ConditionsVMC
LightDusk
Wind290° @ 8 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point55 / 41 C
Altimeter0
Observation Time00:00
Weather SourceWFAC

Appendix: Source Data