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
August 8, 1983 · Piper PA-25C-235 · N4394Y
Upham, ND
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 8, 1983
Injury Outcomes
No injuries (1 uninjured)
Location
Upham, ND
Aircraft
Piper PA-25C-235
Tail Number
N4394Y
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN83LA191
THE PILOT SAID HE DEPARTED SOURIS WITH APRX 17 GALLONS OF FUEL ON BOARD AND FLEW FOR 1 HOUR AT 500 FEET TO MANDAN, ND. HE DEPARTED MANDAN WITHOUT REFUELING AND FUEL EXHAUSTION OCCURRED ABOUT 1 HOUR LATER. HE HAD FLOWN FOR ABOUT 2 HOURS AT 500 FEET AGL WITH THE FUEL MISTURE LEANED FOR BEST ECONOMY. ACCORDING TO THE ACFT HANDBOOK THE ENGINE WILL CONSUME 15.5 GPH AT 75 PERCENT POWER AND 12.2 GPH AT 60 PERCENT CRUISE. THE ACFT LANDED IN A FIELD.
Full Narrative
THE PILOT SAID HE DEPARTED SOURIS WITH APRX 17 GALLONS OF FUEL ON BOARD AND FLEW FOR 1 HOUR AT 500 FEET TO MANDAN, ND. HE DEPARTED MANDAN WITHOUT REFUELING AND FUEL EXHAUSTION OCCURRED ABOUT 1 HOUR LATER. HE HAD FLOWN FOR ABOUT 2 HOURS AT 500 FEET AGL WITH THE FUEL MISTURE LEANED FOR BEST ECONOMY. ACCORDING TO THE ACFT HANDBOOK THE ENGINE WILL CONSUME 15.5 GPH AT 75 PERCENT POWER AND 12.2 GPH AT 60 PERCENT CRUISE. THE ACFT LANDED IN A FIELD.
Flight
Event TypeAccident
Event Time16:00 CDT
Nearest Airport3nm W
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-25C-235
Tail NumberN4394Y
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540-B2C5 · Reciprocating · 235
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 35 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind110° @ 3 kt
Visibility20 sm
CeilingOvercast 25000 ft
Temperature / Dew Point46
Altimeter30.00 inHg
Observation Time20:55
Weather SourceWFAC