Overall Trends
Total, fatal, and serious accidents in the selected range.
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
Search everything
Fast key and full-text search with live filters, watches, and precise metadata.
Use quotes for exact phrase matches (for example "fuel selector valve").
Featured 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…
High-signal investigations
Major cases, deep-report coverage, and investigation media across decades of NTSB history.
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 manufacturersAirports
More airportsOperators
More operatorsAbout
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
December 18, 1985 · Beech V-35B · N24198
Wibaux, MT
Overview
Report Status
Preliminary report
Event Type
Accident
Date
December 18, 1985
Injury Outcomes
2 injuries (1 serious injury, 1 minor injury)
Location
Wibaux, MT
Aircraft
Beech V-35B
Tail Number
N24198
Operator
William Hart
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
DEN86LA050
THE PLT STATED THAT LIGHT SNOW WAS FALLING AT THE ARPT AT THE TIME OF DEPARTURE. THE PAX STATED AFTER THE ACCIDENT THAT THE PLT ENCOUNTERED CLOUDS AT THEIR CRUISE ALT OF ABOUT 6000 FT. HE CONTINUED TO STATE THAT THE ACFT MADE A SHALLOW DESCENT AT FIRST ENCOUNTER WITH THE CLOUDS BUT BECAME VERY STEEP SEVERAL TIMES DURING THE DESCENT. THE ACFT BROKE OUT OF THE CLOUDS AND IMPACTED THE SNOW COVERED FIELD AT A HIGH RATE OF DESCENT AND AIRSPEED. THE PLT DID NOT PERFORM A PREFLIGHT INSPECTION OF THE ACFT, HE DID NOT DEICE THE ACFT PRIOR TO DEPARTURE AND HE DOES NOT HOLD AN INSTRUMENT RATING.
Full Narrative
THE PLT STATED THAT LIGHT SNOW WAS FALLING AT THE ARPT AT THE TIME OF DEPARTURE. THE PAX STATED AFTER THE ACCIDENT THAT THE PLT ENCOUNTERED CLOUDS AT THEIR CRUISE ALT OF ABOUT 6000 FT. HE CONTINUED TO STATE THAT THE ACFT MADE A SHALLOW DESCENT AT FIRST ENCOUNTER WITH THE CLOUDS BUT BECAME VERY STEEP SEVERAL TIMES DURING THE DESCENT. THE ACFT BROKE OUT OF THE CLOUDS AND IMPACTED THE SNOW COVERED FIELD AT A HIGH RATE OF DESCENT AND AIRSPEED. THE PLT DID NOT PERFORM A PREFLIGHT INSPECTION OF THE ACFT, HE DID NOT DEICE THE ACFT PRIOR TO DEPARTURE AND HE DOES NOT HOLD AN INSTRUMENT RATING.
Flight
Event TypeAccident
Event Time16:30 MST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech V-35B
Tail NumberN24198
Aircraft CategoryAir
DamageDestroyed
OperatorWilliam Hart
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-BA · Reciprocating · 285
Seats5
People & Injuries
Injury Summary2 injuries (1 serious injury, 1 minor injury)
Fatal0
Serious1
Minor1
Uninjured0
Total2
Crew 1Age 50 · Third Class
Conditions
ConditionsVMC
LightDusk
Wind330° @ 20 kt, gusting 30 kt
Visibility2 sm
CeilingOvercast 1200 ft
Temperature / Dew Point28 C / 25 C
Altimeter30.00 inHg
Weather SourcePILO