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

May 17, 2013 · Stinson 108-1 · N8931K

Cambridge, MN

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
May 17, 2013
Injury Outcomes
No injuries (2 uninjured)
Location
Cambridge, MN
Aircraft
Stinson 108-1
Tail Number
N8931K
Operator
Danial Stewart
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN13CA284

The pilot stated that after touchdown on the runway, an unexpected gusting crosswind turned the nose of the airplane to the left. The airplane ground looped and went off the east side of the runway, during which the left wing and firewall were substantially damaged. The pilot stated that there were no preaccident mechanical malfunctions or failures with the airplane.

NTSB Probable Cause

Environmental issues-Conditions/weather/phenomena-Wind-Gusts-Effect on equipment

Full Narrative

The pilot stated that after touchdown on the runway, an unexpected gusting crosswind turned the nose of the airplane to the left. The airplane ground looped and went off the east side of the runway, during which the left wing and firewall were substantially damaged. The pilot stated that there were no preaccident mechanical malfunctions or failures with the airplane.

Flight

Event TypeAccident
Event Time08:10 CDT
Nearest AirportCambridge Regional Airport (0nm)
Runway16C
Runway Length4001 ft
Runway Width75 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftStinson 108-1
Tail NumberN8931K
Aircraft CategoryAir
DamageSubstantial
OperatorDanial Stewart
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6A4150 SERIES · Reciprocating · 150
Seats4

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 62 · Third Class · None

Conditions

ConditionsVMC
LightDaylight
Wind110° @ 5 kt, gusting 10 kt
Visibility10 sm
CeilingBroken clouds 8700 ft
Temperature / Dew Point57 / 28 C
Altimeter30.10 inHg
Observation Time14:00
Weather SourceWFAC

Appendix: Source Data