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

August 6, 1991 · Cessna 180 · N1637C

Walker, MN

Overview

Report Status
Probable Cause
Event Type
Accident
Date
August 6, 1991
Injury Outcomes
No injuries (2 uninjured)
Location
Walker, MN
Aircraft
Cessna 180
Tail Number
N1637C
Operator
Slater Airman
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI91LA255

THE PILOT SAID THAT WHILE ATTEMPTING TO LAND IN A GUSTY CROSSWIND, DIRECTIONAL CONTROL WAS NOT MAINTAINED. THE AIRCRAFT CAREENED DOWN AN EMBANKMENT RESULTING IN SUBSTANTIAL GEAR AND WING DAMAGE.

NTSB Probable Cause

DIRECTIONAL CONTROL AFTER LANDING WAS NOT MAINTAINED BY THE PILOT. FACTORS RELATED TO THE ACCIDENT WERE A GUSTY CROSSWIND AND A DOWNHILL EMBANKMENT (DITCH).

Full Narrative

THE PILOT SAID THAT WHILE ATTEMPTING TO LAND IN A GUSTY CROSSWIND, DIRECTIONAL CONTROL WAS NOT MAINTAINED. THE AIRCRAFT CAREENED DOWN AN EMBANKMENT RESULTING IN SUBSTANTIAL GEAR AND WING DAMAGE.

Flight

Event TypeAccident
Event Time17:30 CDT
Nearest AirportWALKER (0nm N)
Runway14
Runway Length2803 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 180
Tail NumberN1637C
Aircraft CategoryAir
DamageSubstantial
OperatorSlater Airman
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-470-A · Reciprocating · 230
Seats4

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 60 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind90° @ 10 kt, gusting 20 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data