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 13, 1985 · Learjet 23 · N61TS

Madison, WI

Overview

Report Status
Preliminary report
Event Type
Accident
Date
August 13, 1985
Injury Outcomes
No injuries (2 uninjured)
Location
Madison, WI
Aircraft
Learjet 23
Tail Number
N61TS
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI85FA344

THE PLT ELECTED TO TAKE OFF WITH A HEAVY LOADED ACFT ON THE SHORT RWY. THE PLT STATED A LOUD NOISE WAS HEARD AS THE ACFT APPROACHED 80 KTS. THE TAKEOFF WAS ABORTED AT 100 KTS. HYDROPLANING WAS EXPERIENCED AND A LOSS OF CONTROL OCCURRED. THE ACFT TRAVELED OFF THE DEPARTURE END OF THE RWY WERE THE LEFT MAIN GEAR COLLAPSED. THE ACFT CAME TO REST WITH THE NOSE IN A WATER FILLED DITCH.

Full Narrative

THE PLT ELECTED TO TAKE OFF WITH A HEAVY LOADED ACFT ON THE SHORT RWY. THE PLT STATED A LOUD NOISE WAS HEARD AS THE ACFT APPROACHED 80 KTS. THE TAKEOFF WAS ABORTED AT 100 KTS. HYDROPLANING WAS EXPERIENCED AND A LOSS OF CONTROL OCCURRED. THE ACFT TRAVELED OFF THE DEPARTURE END OF THE RWY WERE THE LEFT MAIN GEAR COLLAPSED. THE ACFT CAME TO REST WITH THE NOSE IN A WATER FILLED DITCH.

Flight

Event TypeAccident
Event Time01:15 CDT
Nearest AirportDane County Regional (0nm N)
Runway31
Runway Length5846 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftLearjet 23
Tail NumberN61TS
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 135
Engines2
Engine TypeTurbojet
Engine DetailsGe · CJ-610-4 · Turbojet · 2850
Seats2

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 34 · First Class

Conditions

ConditionsVMC
LightDark Night
Wind190° @ 8 kt
Visibility7 sm
CeilingBroken clouds 1700 ft
Temperature / Dew Point70 F / 66 F
Altimeter29.00 inHg
Observation Time05:52
Weather SourceWFAC

Appendix: Source Data