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

February 2, 1987 · Glaser-Dirks DG-400 · N104MN

Dillingham, HI

Overview

Report Status
Preliminary report
Event Type
Accident
Date
February 2, 1987
Injury Outcomes
1 injury (1 fatality)
Location
Dillingham, HI
Aircraft
Glaser-Dirks DG-400
Tail Number
N104MN
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX87DJA04

THE AIRCRAFT WAS OBSERVED FLYING OVER A RIDGE AT A 'GOOD RATE OF AIRSPEED'. IT TURNED BACK TOWARDS THE RIDGE AND COLLIDED WITH THE TERRAIN. THERE WAS A SIGMET IN EFFECT FOR MODERATE TO SEVERE TURBULENCE. INVESTIGATION REVEALED NO PREIMPACT MECHANICAL MALFUNCTIONS/FAILURES.

Full Narrative

THE AIRCRAFT WAS OBSERVED FLYING OVER A RIDGE AT A 'GOOD RATE OF AIRSPEED'. IT TURNED BACK TOWARDS THE RIDGE AND COLLIDED WITH THE TERRAIN. THERE WAS A SIGMET IN EFFECT FOR MODERATE TO SEVERE TURBULENCE. INVESTIGATION REVEALED NO PREIMPACT MECHANICAL MALFUNCTIONS/FAILURES.

Flight

Event TypeAccident
Event Time14:30 HST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftGlaser-Dirks DG-400
Tail NumberN104MN
Aircraft CategoryGli
DamageDestroyed
Operating RulePart 91
Engine TypeUnknown
Engine DetailsUnknown
Seats1

People & Injuries

Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 36 · First Class

Conditions

ConditionsVMC
LightDaylight
Wind45° @ 15 kt
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT

Appendix: Source Data