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

April 5, 1990 · Air Tractor AT-401 · N1015A

Hornersville, MO

Overview

Report Status
Preliminary report
Event Type
Accident
Date
April 5, 1990
Injury Outcomes
No injuries (1 uninjured)
Location
Hornersville, MO
Aircraft
Air Tractor AT-401
Tail Number
N1015A
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MKC90LA081

THE PILOT SAID THAT SHORTLY AFTER TAKEOFF, DURING AN AERIAL APPLICATION OPERATION, THE ENGINE FAILED. AN EMERGENCY LANDING WAS MADE IN A SOFT, MUDDY FARM FIELD, RESULTING IN A NOSE OVER AND SUBSTANTIAL DAMAGE TO THE ACFT. A POST-ACCIDENT INVESTIGATION REVEALED THE #9 CYLINDER ON THE POWERPLANT HAD FAILED.

Full Narrative

THE PILOT SAID THAT SHORTLY AFTER TAKEOFF, DURING AN AERIAL APPLICATION OPERATION, THE ENGINE FAILED. AN EMERGENCY LANDING WAS MADE IN A SOFT, MUDDY FARM FIELD, RESULTING IN A NOSE OVER AND SUBSTANTIAL DAMAGE TO THE ACFT. A POST-ACCIDENT INVESTIGATION REVEALED THE #9 CYLINDER ON THE POWERPLANT HAD FAILED.

Flight

Event TypeAccident
Event Time13:00 CDT
Nearest AirportHornersville (0nm N)
Runway18
Runway Length2640 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftAir Tractor AT-401
Tail NumberN1015A
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340-AN1 · Reciprocating · 600
Seats1

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 44 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind180° @ 5 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point61 F / 0 C
Altimeter29.00 inHg
Weather SourcePILO

Appendix: Source Data