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
December 2, 1985 · Embraer EMB-110P1 · N90427
Detroit, MI
Overview
Report Status
Preliminary report
Event Type
Incident
Date
December 2, 1985
Injury Outcomes
No injuries (15 uninjured)
Location
Detroit, MI
Aircraft
Embraer EMB-110P1
Tail Number
N90427
Operator
Simmons Airlines
Injuries
None
Aircraft Damage
Minor
NTSB Number
CHI86IA037
THE ACFT SUFFERED A FAILURE OF THE LEFT REAR AXLE DURING TAXI TO TAKEOFF.
Full Narrative
THE ACFT SUFFERED A FAILURE OF THE LEFT REAR AXLE DURING TAXI TO TAKEOFF.
Flight
Event TypeIncident
Event Time11:50 EST
Nearest AirportDetroit Metro (0nm N)
Runway0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftEmbraer EMB-110P1
Tail NumberN90427
Aircraft CategoryAir
DamageMinor
OperatorSimmons Airlines
Operating RulePart 135
Engines2
Engine TypeTurboprop
Engine DetailsP&W · PT6A-34 · Turboprop · 500
Seats20
People & Injuries
Injury SummaryNo injuries (15 uninjured)
Fatal0
Serious0
Minor0
Uninjured15
Total15
Crew 1Age 31 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind280° @ 27 kt
Visibility5 sm
CeilingNone
Temperature / Dew Point27 C / 16 C
Altimeter29.00 inHg
Observation Time16:50
Weather SourceWFAC