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
May 5, 1986 · Boeing 737-200 · N28SW
Almosa, CO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 5, 1986
Injury Outcomes
2 injuries (2 serious injuries), 50 uninjured
Location
Almosa, CO
Aircraft
Boeing 737-200
Tail Number
N28SW
Injuries
Serious
NTSB Number
DEN86FA125
A SOUTHWEST AIRLINE COMPANY BOEING 737, FLT NO. 558 EN ROUTE FROM DENVER, COLORADO, TO ALBUQUERQUE, NEW MEXICO, AT FL 350, ENCOUNTERED SEVERE CLEAR AIR TURBULENCE. THE UNEXPECTED WX PHENOMENA CAUSED THE ACFT TO 'DROP' SUDDENLY RESULTING IN TWO FLT ATTENDANTS BEING INJURED. AFTER THE ACFT WAS AGAIN BROUGHT BACK TO LEVEL FLT THE REST OF THE FLT WAS UNEVENTFUL.
Full Narrative
A SOUTHWEST AIRLINE COMPANY BOEING 737, FLT NO. 558 EN ROUTE FROM DENVER, COLORADO, TO ALBUQUERQUE, NEW MEXICO, AT FL 350, ENCOUNTERED SEVERE CLEAR AIR TURBULENCE. THE UNEXPECTED WX PHENOMENA CAUSED THE ACFT TO 'DROP' SUDDENLY RESULTING IN TWO FLT ATTENDANTS BEING INJURED. AFTER THE ACFT WAS AGAIN BROUGHT BACK TO LEVEL FLT THE REST OF THE FLT WAS UNEVENTFUL.
Flight
Event TypeAccident
Event Time18:07 MDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing 737-200
Tail NumberN28SW
Aircraft CategoryAir
Operating RulePart 121
Engines2
Engine TypeTurbofan
Engine DetailsP&W · JT8-9 · Turbofan · 14500
Seats122
People & Injuries
Injury Summary2 injuries (2 serious injuries), 50 uninjured
Fatal0
Serious2
Minor0
Uninjured50
Total52
Crew 1Age 39 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind210° @ 20 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point59 / 9 C
Altimeter29.00 inHg
Observation Time00:50
Weather SourceWFAC