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

July 25, 1992 · Stinson 108-3 · N948C

Boonville, MO

Overview

Report Status
Probable Cause
Event Type
Accident
Date
July 25, 1992
Injury Outcomes
4 injuries (2 fatalities, 1 serious injury, 1 minor injury)
Location
Boonville, MO
Aircraft
Stinson 108-3
Tail Number
N948C
Operator
J D Twenter
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
CHI92FA211

THE AIRPLANE STRUCK POWER LINES NEAR DEPARTURE END OF RUNWAY AND CRASHED INTO A PARKING LOT AND WAS DESTROYED BY A POST CRASH FIRE. THE AIRPLANE HAD FULL FUEL, THREE PASSENGERS, AND 100 HUNDRED POUNDS OF BAGGAGE. THE RUNWAY WAS 2600 FEET LONG, THE SURFACE WAS LONG GRASS, AND THE GROUND WAS SOFT AND UNEVEN. THE AIRPLANE WAS APPROXIMATELY 175 POUNDS OVER MAXIMUM GROSS WEIGHT. TAKEOFF DISTANCE REQUIRED FOR 50 FOOT OBSTACLE CLEARANCE WAS 3188 FEET.

NTSB Probable Cause

INADEQUATE PREFLIGHT PLANNING, AND EXCEEDING THE PERFORMANCE CAPABILITY OF THE AIRPLANE BY THE PILOT-IN-COMMAND.

Full Narrative

THE AIRPLANE STRUCK POWER LINES NEAR DEPARTURE END OF RUNWAY AND CRASHED INTO A PARKING LOT AND WAS DESTROYED BY A POST CRASH FIRE. THE AIRPLANE HAD FULL FUEL, THREE PASSENGERS, AND 100 HUNDRED POUNDS OF BAGGAGE. THE RUNWAY WAS 2600 FEET LONG, THE SURFACE WAS LONG GRASS, AND THE GROUND WAS SOFT AND UNEVEN. THE AIRPLANE WAS APPROXIMATELY 175 POUNDS OVER MAXIMUM GROSS WEIGHT. TAKEOFF DISTANCE REQUIRED FOR 50 FOOT OBSTACLE CLEARANCE WAS 3188 FEET.

Flight

Event TypeAccident
Event Time06:20 CDT
Nearest AirportSnoody Airport (1nm NE)
Runway5
Runway Length2600 ft
Runway Width70 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo

Aircraft

AircraftStinson 108-3
Tail NumberN948C
Aircraft CategoryAir
DamageDestroyed
OperatorJ D Twenter
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6A4-165-B3 · Reciprocating · 165
Seats4

People & Injuries

Injury Summary4 injuries (2 fatalities, 1 serious injury, 1 minor injury)
Fatal2
Serious1
Minor1
Uninjured0
Total4
Crew 1Age 53 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind180° @ 6 kt
Visibility10 sm
CeilingBroken clouds 25000 ft
Altimeter30.00 inHg
Observation Time10:50
Weather SourceWFAC

Appendix: Source Data