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 5, 1984 · Gable Sonerai II · N3994G

Berlin, WI

Overview

Report Status
Preliminary report
Event Type
Accident
Date
May 5, 1984
Injury Outcomes
1 injury (1 serious injury)
Location
Berlin, WI
Aircraft
Gable Sonerai II
Tail Number
N3994G
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
CHI84LA174

THIS HOMEBUILT ACFT STALLED DURING A FORCED LANDING AFTER AN ENGINE FAILURE. THE PLT REPORTED THAT THE ENGINE TEMPERATURE WENT TO 650 DEGREES WHICH WAS AN OVERHEAT CONDITION. THE PLT STATED THAT HE TRIED TO RETURN TO THE ARPT BUT STALLED 20 FT SHORT OF RWY 27 AND CRASHED IN A SWAMPY AREA. FAA ADVISED THAT THE OWNER HAD TRIED TO MODIFY AN OPENING INTHE COWLING FOR COOLING BUT DUE TO POSITIONING AND AREA THE RESULT WAS A LACK OF COOLING.

Full Narrative

THIS HOMEBUILT ACFT STALLED DURING A FORCED LANDING AFTER AN ENGINE FAILURE. THE PLT REPORTED THAT THE ENGINE TEMPERATURE WENT TO 650 DEGREES WHICH WAS AN OVERHEAT CONDITION. THE PLT STATED THAT HE TRIED TO RETURN TO THE ARPT BUT STALLED 20 FT SHORT OF RWY 27 AND CRASHED IN A SWAMPY AREA. FAA ADVISED THAT THE OWNER HAD TRIED TO MODIFY AN OPENING INTHE COWLING FOR COOLING BUT DUE TO POSITIONING AND AREA THE RESULT WAS A LACK OF COOLING.

Flight

Event TypeAccident
Event Time15:37 CDT
Nearest AirportBERLIN (0nm N)
Runway9
Runway Length2200 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftGable Sonerai II
Tail NumberN3994G
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsVolkswagen · NOT REPORTED · Reciprocating
Seats2

People & Injuries

Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 53 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind220° @ 12 kt
Visibility20 sm
CeilingBroken clouds 4000 ft
Temperature / Dew Point0 C / 0 C
Altimeter29.00 inHg
Observation Time20:45
Weather SourceWFAC

Appendix: Source Data