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 18, 1986 · Cessna 177B · N34043
Broomfield, CO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 18, 1986
Injury Outcomes
No injuries (4 uninjured)
Location
Broomfield, CO
Aircraft
Cessna 177B
Tail Number
N34043
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN86LA233
THE PLT SAID THAT HE WAS ON A HIGH FINAL APPROACH FOR LANDING AND JUST PRIOR TO TOUCHDOWN, THE ACFT WAS HIT BY A STRONG GUST OF WIND. AFTER TOUCHDOWN, THE PLT LOST CONTROL OF THE ACFT AND IT WENT OFF THE LEFT SIDE OF THE RWY. THE ACFT SUSTAINED SUBSTANTIAL DAMAGE.
Full Narrative
THE PLT SAID THAT HE WAS ON A HIGH FINAL APPROACH FOR LANDING AND JUST PRIOR TO TOUCHDOWN, THE ACFT WAS HIT BY A STRONG GUST OF WIND. AFTER TOUCHDOWN, THE PLT LOST CONTROL OF THE ACFT AND IT WENT OFF THE LEFT SIDE OF THE RWY. THE ACFT SUSTAINED SUBSTANTIAL DAMAGE.
Flight
Event TypeAccident
Event Time13:00 MDT
Nearest AirportJEFFCO (0nm N)
Runway11L
Runway Length7498 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 177B
Tail NumberN34043
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-A1F6 · Reciprocating · 180
Seats4
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 46 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind90° @ 12 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point45 C
Altimeter30.00 inHg
Observation Time19:59
Weather SourceWFAC