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
August 13, 1984 · Bakeman-Chapman Cassutt III M Cassutt II · N520BC
Olin, TX
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 13, 1984
Injury Outcomes
1 injury (1 serious injury)
Location
Olin, TX
Aircraft
Bakeman-Chapman Cassutt III M Cassutt II
Tail Number
N520BC
Operator
Jon M Chenettec
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
FTW84FA347
PLT HAD PURCHASED THE ACFT EARLIER ON DAY OF ACCIDENT. HE HAD NO PREVIOUS TIME IN THE ACFT. HE FLEW FOR 220 MILES AND MADE FIRST LANDING. ACFT SERVICED WITH FUEL ONLY. TAKEOFF WAS MADE AND HE FLEW FOR 60 MILES. ENG BEGAN TO VIBRATE AND BLACK SMOKE OBSERVED. PLT MADE EMERG LANDING AND TOUCHED DOWN HARD IN LEVEL SOD FIELD. INVESTIGATION REVEALED THE #1 ROD FAILED FROM OVERHEAT CAUSED BY LACK OF OIL. OIL DRAIN PLUG MISSING. EVIDENCE OF DIRT IN THE HOLE THREADS. NO EVIDENCE OF IMPACT ON DRAIN PLUG. ENG TEAR DOWN AND NTSB METALLURGICAL EXAM CONFIRMED OIL STARVATION TO ROD BEARING COMPONENTS. LAST OIL CHANGE WAS MORE THAN ONE MONTH PRIOR TO THE ACCIDENT AND THE ACFT HAD NOT BEEN FLOWN UNTIL THE DAY OF THE ACCIDENT.
Full Narrative
PLT HAD PURCHASED THE ACFT EARLIER ON DAY OF ACCIDENT. HE HAD NO PREVIOUS TIME IN THE ACFT. HE FLEW FOR 220 MILES AND MADE FIRST LANDING. ACFT SERVICED WITH FUEL ONLY. TAKEOFF WAS MADE AND HE FLEW FOR 60 MILES. ENG BEGAN TO VIBRATE AND BLACK SMOKE OBSERVED. PLT MADE EMERG LANDING AND TOUCHED DOWN HARD IN LEVEL SOD FIELD. INVESTIGATION REVEALED THE #1 ROD FAILED FROM OVERHEAT CAUSED BY LACK OF OIL. OIL DRAIN PLUG MISSING. EVIDENCE OF DIRT IN THE HOLE THREADS. NO EVIDENCE OF IMPACT ON DRAIN PLUG. ENG TEAR DOWN AND NTSB METALLURGICAL EXAM CONFIRMED OIL STARVATION TO ROD BEARING COMPONENTS. LAST OIL CHANGE WAS MORE THAN ONE MONTH PRIOR TO THE ACCIDENT AND THE ACFT HAD NOT BEEN FLOWN UNTIL THE DAY OF THE ACCIDENT.
Flight
Event TypeAccident
Event Time19:00 CDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBakeman-Chapman Cassutt III M Cassutt II
Tail NumberN520BC
Aircraft CategoryAir
DamageDestroyed
OperatorJon M Chenettec
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-200-A · Reciprocating
Seats1
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 40 · Third Class
Conditions
ConditionsVMC
LightDusk
Wind70° @ 6 kt
Visibility7 sm
CeilingBroken clouds 3500 ft
Temperature / Dew Point70 F
Altimeter30.00 inHg
Observation Time00:52
Weather SourceWFAC