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
July 26, 1985 · Christopher D Brown Gyroplane · N46Z
Oshkosh, WI
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 26, 1985
Injury Outcomes
1 injury (1 serious injury)
Location
Oshkosh, WI
Aircraft
Christopher D Brown Gyroplane
Tail Number
N46Z
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
CHI85FA315
THE PILOT WAS PRACTICING LOW ALTITUDE MANEUVERS, ADJACENT TO THE RUNWAY. WHEN HE TURNED TO MAKE A DOWNWIND, AT THE SOUTHEAST END OF THE RUNWAY, HE IMPACTED WITH THE TERRAIN. WITNESSES STATED THAT THEY OBSERVED THE GYROPLANE MAKING STEEP TURNS AT A LOW ALTITUDE AND IT HAD JUST ENTERED A STEEP LEFT TURN, DOWNWIND AT A 45 DEGREE NOSEDOWN ANGLE, WHEN THE GYROPLANE FLEW INTO THE GROUND.
Full Narrative
THE PILOT WAS PRACTICING LOW ALTITUDE MANEUVERS, ADJACENT TO THE RUNWAY. WHEN HE TURNED TO MAKE A DOWNWIND, AT THE SOUTHEAST END OF THE RUNWAY, HE IMPACTED WITH THE TERRAIN. WITNESSES STATED THAT THEY OBSERVED THE GYROPLANE MAKING STEEP TURNS AT A LOW ALTITUDE AND IT HAD JUST ENTERED A STEEP LEFT TURN, DOWNWIND AT A 45 DEGREE NOSEDOWN ANGLE, WHEN THE GYROPLANE FLEW INTO THE GROUND.
Flight
Event TypeAccident
Event Time10:30 CDT
Nearest AirportOSHKOSH (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftChristopher D Brown Gyroplane
Tail NumberN46Z
Aircraft CategoryGyro
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotax · 503 · Reciprocating
Seats1
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 38 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind300° @ 7 kt
Visibility12 sm
CeilingNone
Temperature / Dew Point61 F
Altimeter30.00 inHg
Observation Time15:45
Weather SourceWFAC