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
November 23, 1986 · Piper PA-28-181 · N4326P
Summersville, MO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
November 23, 1986
Injury Outcomes
1 injury (1 fatality)
Location
Summersville, MO
Aircraft
Piper PA-28-181
Tail Number
N4326P
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
MKC87FA022
THE PIC HAD FLOWN HIS ACFT FM SPRINGFIELD, MO TO OLATHE, KANSAS TO HAVE SOME REPAIR WORK ACCOMPLISHED AND WAS TO RETURN THAT SAME DAY. THE PIC NEVER RETURNED TO SPRINGFIELD. THE PIC HAD FLOWN TO SALEM, ILL WHERE WITNESSES STATED THEY OBSERVED THAT HE WAS CONFUSED AND DISORIENTED. THE PIC TRIED TO RETURN TO SPRINGFIELD, THE NEXT DAY, BUT STOPPED SHORT AT ROLLA, MISSOURI. AGAIN WITNESSES AT ROLLA STATED THAT THE PIC WAS CONFUSED AND DISORIENTED. THE PIC WAS ON THE PRESCRIPTION DRUGS TENORMIN AND LIBRIUM. BOTH OF THESE DRUGS HAVE WARNINGS THAT INCLUDE CONFUSION, DISORIENTATION AS SIDE EFFECTS. WEATHER IN THE CRASH SITE WHICH OCCURRED AT NIGHT, INCLUDED LOW CEILINGS AND FOG AND THE PIC WAS NOT INSTRUMENT RATED. THE FORECASTED WX FOR THE FLT TO SPRINGFIELD WAS VFR.
Full Narrative
THE PIC HAD FLOWN HIS ACFT FM SPRINGFIELD, MO TO OLATHE, KANSAS TO HAVE SOME REPAIR WORK ACCOMPLISHED AND WAS TO RETURN THAT SAME DAY. THE PIC NEVER RETURNED TO SPRINGFIELD. THE PIC HAD FLOWN TO SALEM, ILL WHERE WITNESSES STATED THEY OBSERVED THAT HE WAS CONFUSED AND DISORIENTED. THE PIC TRIED TO RETURN TO SPRINGFIELD, THE NEXT DAY, BUT STOPPED SHORT AT ROLLA, MISSOURI. AGAIN WITNESSES AT ROLLA STATED THAT THE PIC WAS CONFUSED AND DISORIENTED. THE PIC WAS ON THE PRESCRIPTION DRUGS TENORMIN AND LIBRIUM. BOTH OF THESE DRUGS HAVE WARNINGS THAT INCLUDE CONFUSION, DISORIENTATION AS SIDE EFFECTS. WEATHER IN THE CRASH SITE WHICH OCCURRED AT NIGHT, INCLUDED LOW CEILINGS AND FOG AND THE PIC WAS NOT INSTRUMENT RATED. THE FORECASTED WX FOR THE FLT TO SPRINGFIELD WAS VFR.
Flight
Event TypeAccident
Event Time20:00 CST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-28-181
Tail NumberN4326P
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A4M · Reciprocating · 180
Seats4
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 63 · Third Class
Conditions
ConditionsIMC
LightDark Night
WindCalm
CeilingOvercast 100 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT