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
February 20, 1986 · Boeing 737-300 · N17309
Denver, CO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
February 20, 1986
Injury Outcomes
No injuries (111 uninjured)
Location
Denver, CO
Aircraft
Boeing 737-300
Tail Number
N17309
Operator
Continental Airlines
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN86FA080
F/O WAS ON THE 3RD INITIAL OPERATING EXPERIENCE FLT WITH A CHECK AIRMAN. CAPT AND F/O HAD DISCUSSED RAPID RATE OF ROTATION ON PREVIOUS FLTS AND AGAIN ON ACCIDENT FLT. THE F/O PERFORMED THE TAKEOFF FROM DENVER AND EXCEEDED ROTATION RATE OF 3 DEGREES PER SEC. THE AFT FUSELAGE UNDERBELLY STRUCK THE RWY, SUBSTANTIALLY DAMAGING THE AIRCRAFT.
Full Narrative
F/O WAS ON THE 3RD INITIAL OPERATING EXPERIENCE FLT WITH A CHECK AIRMAN. CAPT AND F/O HAD DISCUSSED RAPID RATE OF ROTATION ON PREVIOUS FLTS AND AGAIN ON ACCIDENT FLT. THE F/O PERFORMED THE TAKEOFF FROM DENVER AND EXCEEDED ROTATION RATE OF 3 DEGREES PER SEC. THE AFT FUSELAGE UNDERBELLY STRUCK THE RWY, SUBSTANTIALLY DAMAGING THE AIRCRAFT.
Flight
Event TypeAccident
Event Time14:39 MST
Nearest AirportStapleton Intl (0nm N)
Runway8R
Runway Length10010 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing 737-300
Tail NumberN17309
Aircraft CategoryAir
DamageSubstantial
OperatorContinental Airlines
Operating RulePart 121
Engines2
Engine TypeTurbofan
Engine DetailsGe · CFM-56-3 · Turbofan · 2000
Seats149
People & Injuries
Injury SummaryNo injuries (111 uninjured)
Fatal0
Serious0
Minor0
Uninjured111
Total111
Crew 1Age 50 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind30° @ 5 kt
Visibility7 sm
CeilingBroken clouds 20000 ft
Temperature / Dew Point27 C / 19 C
Altimeter29.00 inHg
Observation Time21:50
Weather SourceWFAC