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
June 8, 1991 · Hagaman Pitts Pitts S · N711B
Warrenton, VA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 8, 1991
Injury Outcomes
1 injury (1 serious injury)
Location
Warrenton, VA
Aircraft
Hagaman Pitts Pitts S
Tail Number
N711B
Operator
William E Gladstone
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
BFO91DIA01
AFTER DOING SEVERAL AEROBATIC MANEUVERS, THE PLT TRIED TO DO A LOOP AT LOW ALTITUDE OVER THE AIRPORT. THE ACFT STRUCK TREES AT THE BOTTOM OF THE LOOP. THE INVESTIGATION DID NOT DISCLOSE EVIDENCE OF MECHANICAL MALFUNCTION.
NTSB Probable Cause
THE PILOT MISJUDED ALTITUDE AND CLEARANCE ABOVE THE TERRAIN. CONTRIBUTING TO THE ACCIDENT WAS AEROBATIC MANEUVER PERFORMED AT LOW ALTITUDE.
Full Narrative
AFTER DOING SEVERAL AEROBATIC MANEUVERS, THE PLT TRIED TO DO A LOOP AT LOW ALTITUDE OVER THE AIRPORT. THE ACFT STRUCK TREES AT THE BOTTOM OF THE LOOP. THE INVESTIGATION DID NOT DISCLOSE EVIDENCE OF MECHANICAL MALFUNCTION.
Flight
Event TypeAccident
Event Time15:00 EDT
Nearest AirportHorse Feathers (0nm N)
Runway36
Runway Length2600 ft
Runway Width60 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHagaman Pitts Pitts S
Tail NumberN711B
Aircraft CategoryAir
DamageDestroyed
OperatorWilliam E Gladstone
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 · Reciprocating · 160
Seats1
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 70 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter29.00 inHg
Weather SourceWIT