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
May 15, 1991 · Ayres S2R-T34 · N4010P
Parkin, AR
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 15, 1991
Injury Outcomes
1 injury (1 fatality)
Location
Parkin, AR
Aircraft
Ayres S2R-T34
Tail Number
N4010P
Operator
Richard Reade
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
FTW91FA092
THE AIRPLANE WAS CONDUCTING AGRICULTURAL SPRAYING IN OPEN FIELDS SURROUNDED BY APPROXIMATELY 100 FOOT HIGH TREES. THE OUTBOARD PORTION ON THE LEFT WING SEPARATED FROM THE AIRPLANE 1,136 FEET FROM THE MAIN WRECKAGE. THE LEFT AILERON WAS FOUND 1,005 FEET FROM THE MAIN WRECKAGE. METALLURGICAL ANALYSIS REVEALED THAT NO WING DEFECTS WERE PRESENT. THE WING AND AILERON SEPARATION WERE DUE TO THE AIRPLANE STRIKING A VERTICAL OBJECT SUCH AS A TREE. THAT OBJECT WAS NOT FOUND.
NTSB Probable Cause
FAILURE OF THE PILOT TO MAINTAIN ADEQUATE CLEARANCE FROM OBJECTS.
Full Narrative
THE AIRPLANE WAS CONDUCTING AGRICULTURAL SPRAYING IN OPEN FIELDS SURROUNDED BY APPROXIMATELY 100 FOOT HIGH TREES. THE OUTBOARD PORTION ON THE LEFT WING SEPARATED FROM THE AIRPLANE 1,136 FEET FROM THE MAIN WRECKAGE. THE LEFT AILERON WAS FOUND 1,005 FEET FROM THE MAIN WRECKAGE. METALLURGICAL ANALYSIS REVEALED THAT NO WING DEFECTS WERE PRESENT. THE WING AND AILERON SEPARATION WERE DUE TO THE AIRPLANE STRIKING A VERTICAL OBJECT SUCH AS A TREE. THAT OBJECT WAS NOT FOUND.
Flight
Event TypeAccident
Event Time12:15 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAyres S2R-T34
Tail NumberN4010P
Aircraft CategoryAir
DamageDestroyed
OperatorRichard Reade
Operating RulePart 137
Engines1
Engine TypeTurboprop
Engine DetailsP&W · PT6A-41 · Turboprop · 500
Seats1
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 46 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind135° @ 3 kt
Visibility8 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourceWIT