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 12, 1983 · Homebuilt Rotorcraft Z6 Rotorcraft · N23104
Bennett, CO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
March 12, 1983
Injury Outcomes
1 injury (1 fatality)
Location
Bennett, CO
Aircraft
Homebuilt Rotorcraft Z6 Rotorcraft
Tail Number
N23104
Injuries
Fatal
Aircraft Damage
Substantial
NTSB Number
DEN83FTE07
THE HOMEBUILT GYROCOPTER CRASHED ON LEVEL TERRAIN AFTER RUDDER AND ROTOR BLADE SEPARATION IN FLT. THE RUDDER WAS FOUND ABOUT 100 YARDS FROM THE MAIN WRECKAGE. IT HAD BEEN STRUCK BY ONE OF THE ROTOR BLADES AND HAD SEPARATED IN FLT. THE SEPARATED ROTOR BLADE LANDED WITH THE MAIN WRECKAGE. THE PILOT HAD NO RECORD OF PREVIOUS FLIGHT IN THIS GYROCOPTER OR ANY OTHER ACFT AND DID NOT POSSESS A PILOT CERTIFICATE. THE PILOT'S SEAT BELT WAS NOT BUCKLED AT IMPACT AND HE WAS FATALLY INJURED WHEN THROWN CLEAR OF THE AIRCRAFT.
Full Narrative
THE HOMEBUILT GYROCOPTER CRASHED ON LEVEL TERRAIN AFTER RUDDER AND ROTOR BLADE SEPARATION IN FLT. THE RUDDER WAS FOUND ABOUT 100 YARDS FROM THE MAIN WRECKAGE. IT HAD BEEN STRUCK BY ONE OF THE ROTOR BLADES AND HAD SEPARATED IN FLT. THE SEPARATED ROTOR BLADE LANDED WITH THE MAIN WRECKAGE. THE PILOT HAD NO RECORD OF PREVIOUS FLIGHT IN THIS GYROCOPTER OR ANY OTHER ACFT AND DID NOT POSSESS A PILOT CERTIFICATE. THE PILOT'S SEAT BELT WAS NOT BUCKLED AT IMPACT AND HE WAS FATALLY INJURED WHEN THROWN CLEAR OF THE AIRCRAFT.
Flight
Event TypeAccident
Event Time12:40 MST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHomebuilt Rotorcraft Z6 Rotorcraft
Tail NumberN23104
Aircraft CategoryGyro
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsMcculloch · 2 CYCLE · Reciprocating · 72
Seats1
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 30 · Unknown
Conditions
ConditionsVMC
LightDaylight
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT