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
March 7, 1992 · Beech C23 · N9183S
Ozark, MO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 7, 1992
Injury Outcomes
No injuries (3 uninjured)
Location
Ozark, MO
Aircraft
Beech C23
Tail Number
N9183S
Operator
Hill C Richard
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI92LA107
A PRIVATE RATED DUAL STUDENT WAS RECEIVING NIGHT INSTRUCTION. DURING A SIMULATED FORCED LANDING THE AIRPLANE LANDED HARD AND THE RIGHT MAIN LANDING GEAR COLLAPSED. THE AIRPLANE SLID TO A STOP IN A TREE LINE. THE INSTRUCTOR STATED, '... STALLED THE AIRPLANE ABOUT 10 FEET OR SO CAUSING THE AIRPLANE TO HIT HARD ON THE RIGHT MAIN, BREAKING IT OFF.'
NTSB Probable Cause
THE CFI PILOT-IN-COMMAND'S FAILURE TO PROVIDE ADEQUATE SUPERVISION OF A DUAL STUDENT. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS THE STUDENT PILOT'S FAILURE TO MAINTAIN AIRSPEED.
Full Narrative
A PRIVATE RATED DUAL STUDENT WAS RECEIVING NIGHT INSTRUCTION. DURING A SIMULATED FORCED LANDING THE AIRPLANE LANDED HARD AND THE RIGHT MAIN LANDING GEAR COLLAPSED. THE AIRPLANE SLID TO A STOP IN A TREE LINE. THE INSTRUCTOR STATED, '... STALLED THE AIRPLANE ABOUT 10 FEET OR SO CAUSING THE AIRPLANE TO HIT HARD ON THE RIGHT MAIN, BREAKING IT OFF.'
Flight
Event TypeAccident
Event Time22:45 CST
Nearest AirportOZARK (0nm)
Runway17
Runway Length2528 ft
Runway Width39 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech C23
Tail NumberN9183S
Aircraft CategoryAir
DamageSubstantial
OperatorHill C Richard
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A4G · Reciprocating · 180
Seats4
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 26 · Second Class
Conditions
ConditionsVMC
LightDark Night
Wind270° @ 12 kt
Visibility15 sm
CeilingBroken clouds 4700 ft
Temperature / Dew Point57 / 48
Altimeter29.00 inHg
Observation Time04:00
Weather SourceWFAC