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
September 27, 1992 · Cessna T210N · N1911U
Helena, MT
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 27, 1992
Injury Outcomes
1 injury (1 minor injury), 4 uninjured
Location
Helena, MT
Aircraft
Cessna T210N
Tail Number
N1911U
Operator
Thomas Charles R
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA92LA215
THE AIRCRAFT DEPARTED BISMARK, ND, AND AFTER 3.7 HOURS OF FLIGHT LOST POWER WHILE ON FINAL APPROACH TO HELENA, MT. EXAMINATION OF THE AIRCRAFT DISCLOSED LESS THAN A GALLON OF FUEL REMAINING. THE ROUTE OF FLIGHT TOOK THE AIRCRAFT OVER OR NEAR SEVERAL AIRPORTS WHEREBY FUEL COULD HAVE BEEN OBTAINED. DURING THE FORCED LANDING AND ROLLOUT THE AIRCRAFT IMPACTED AN AIRPORT PERIMETER FENCE. THE FORCED LANDING WAS CONDUCTED UNDER CONDITIONS OF DARKNESS.
NTSB Probable Cause
FUEL EXHAUSTION, THE PILOT IN COMMAND'S FAILURE TO REFUEL EN ROUTE AND THE INABILITY OF THE PILOT IN COMMAND TO AVOID THE FENCE DURING THE LANDING ROLL. FACTORS CONTRIBUTING TO THE ACCIDENT WERE DARK NIGHT CONDITIONS AND THE FENCE.
Full Narrative
THE AIRCRAFT DEPARTED BISMARK, ND, AND AFTER 3.7 HOURS OF FLIGHT LOST POWER WHILE ON FINAL APPROACH TO HELENA, MT. EXAMINATION OF THE AIRCRAFT DISCLOSED LESS THAN A GALLON OF FUEL REMAINING. THE ROUTE OF FLIGHT TOOK THE AIRCRAFT OVER OR NEAR SEVERAL AIRPORTS WHEREBY FUEL COULD HAVE BEEN OBTAINED. DURING THE FORCED LANDING AND ROLLOUT THE AIRCRAFT IMPACTED AN AIRPORT PERIMETER FENCE. THE FORCED LANDING WAS CONDUCTED UNDER CONDITIONS OF DARKNESS.
Flight
Event TypeAccident
Event Time20:39 MDT
Nearest AirportHelena Regional (1nm E)
Runway27
Runway Length9000 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna T210N
Tail NumberN1911U
Aircraft CategoryAir
DamageSubstantial
OperatorThomas Charles R
Operating RulePart 135
Engines1
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-R11B · Reciprocating · 310
Seats6
People & Injuries
Injury Summary1 injury (1 minor injury), 4 uninjured
Fatal0
Serious0
Minor1
Uninjured4
Total5
Crew 1Age 55 · Second Class
Conditions
ConditionsVMC
LightDark Night
Wind280° @ 10 kt, gusting 20 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point64 F / 30 C
Altimeter29.00 inHg
Observation Time02:52
Weather SourceWFAC