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
October 27, 1989 · Cessna 206F · N33211
Opheim, MT
Overview
Report Status
Probable Cause
Event Type
Accident
Date
October 27, 1989
Injury Outcomes
No injuries (2 uninjured)
Location
Opheim, MT
Aircraft
Cessna 206F
Tail Number
N33211
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN90LA014
THE PILOT STATED HE AND THE PAX WERE EN ROUTE TO OPEIM, MT, WHEN HE EXPERIENCED AN ENGINE FAILURE. HE EXECUTED AN EMERGENCY LANDING IN AN OPEN FIELD AND THE AIRPLANE NOSED OVER. POSTACCIDENT EXAMINATION OF THE ENGINE REVEALED NO EVIDENCE OF A MECHANICAL MALFUNCTION OR FAILURE THAT WOULD HAVE PREVENTED NORMAL ENGINE OPERATION. SEVERAL 'SPENT' RIFLE CARTRIDGES WERE FOUND IN THE AIRPLANE. EXAMINATION OF THE AIRPLANE REVEALED THE FLAPS WERE IN THE UP POSITION AT THE TIME OF IMPACT. THE IMPACT MARKS REVEALED THE AIRPLANE TOUCHED DOWN, STRUCK A RAVINE, BECAME AIRBORNE AND IMPACTED THE UPHILL SIDE OF THE RAVINE BEFORE NOSING OVER.
NTSB Probable Cause
PILOT'S FAILURE TO MAINTAIN TERRAIN CLEARANCE WHILE EXECUTING A LOW PASS.
Full Narrative
THE PILOT STATED HE AND THE PAX WERE EN ROUTE TO OPEIM, MT, WHEN HE EXPERIENCED AN ENGINE FAILURE. HE EXECUTED AN EMERGENCY LANDING IN AN OPEN FIELD AND THE AIRPLANE NOSED OVER. POSTACCIDENT EXAMINATION OF THE ENGINE REVEALED NO EVIDENCE OF A MECHANICAL MALFUNCTION OR FAILURE THAT WOULD HAVE PREVENTED NORMAL ENGINE OPERATION. SEVERAL 'SPENT' RIFLE CARTRIDGES WERE FOUND IN THE AIRPLANE. EXAMINATION OF THE AIRPLANE REVEALED THE FLAPS WERE IN THE UP POSITION AT THE TIME OF IMPACT. THE IMPACT MARKS REVEALED THE AIRPLANE TOUCHED DOWN, STRUCK A RAVINE, BECAME AIRBORNE AND IMPACTED THE UPHILL SIDE OF THE RAVINE BEFORE NOSING OVER.
Flight
Event TypeAccident
Event Time12:30 MDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 206F
Tail NumberN33211
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-A · Reciprocating · 285
Seats6
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 43 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 10 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point50 / 0 C
Altimeter0
Weather SourceWIT