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 27, 2020 · Cessna 172 L · N7904G
Dubois, ID
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
February 27, 2020
Injury Outcomes
No injuries (2 uninjured)
Location
Dubois, ID
Aircraft
Cessna 172 L (1970)
Tail Number
N7904G
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR20CA095
The flight instructor reported that, during the instructional flight, the student was making a low pass over the snow-covered runway when the airplane encountered a downdraft that decreased the airspeed and increased the descent rate. The instructor reported that he was too relaxed and should have added power at that moment but didn't. The wheels contacted the snow, and the airplane nosed over and came to rest inverted. The airplane sustained substantial damage to the wings. The instructor reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
NTSB Probable Cause
The student pilot's failure to maintain a proper airspeed and descent rate while conducting a low pass over a snow-covered runway after encountering a downdraft and the flight instructor's delayed action, which resulted in the wheels contacting the snow and the airplane nosing over.
Full Narrative
The flight instructor reported that during the instructional flight, the student was making a low pass over the snow-covered runway when they experienced a downdraft that decreased the airspeed and increased the descent rate. The flight instructor reported that he was too relaxed and should have added power at that moment, but didn't. The airplane's wheels made contact with the snow and the airplane nosed over and came to rest inverted. The airplane sustained substantial damage to the wings. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time09:15 MST
Nearest AirportDubois Muni (0nm SSE)
Runway16
Runway Length4600 ft
Runway Width100 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172 L
Tail NumberN7904G
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 SERIES · Reciprocating · 150
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 26 · First Class · None
Crew 2Age 26 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point3 C / 9 C
Altimeter30.03 inHg
Observation Time16:05
Weather SourcePILO