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 4, 1991 · Cessna C-U206B · N9967M
Novato, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 4, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Novato, CA
Aircraft
Cessna C-U206B
Tail Number
N9967M
Operator
Barry John D
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX91LA287
THE PILOT WAS PERFORMING NIGHT TAKEOFFS AND LANDINGS TO BECOME CURRENT FOR NIGHT OPERATIONS. HE DEPARTED RUNWAY 13 AND LANDED ON RUNWAY 31. AFTER LANDING ON RUNWAY 31 AND ROLLING OUT TO THE END OF THE RUNWAY THE PILOT AGAIN DEPARTED RUNWAY 13. THE PILOT FORGOT TO PLACE THE MIXTURE CONTROL IN THE RICH POSITION AND BEGAN THE TAKEOFF ROLL. WHEN THE AIRPLANE WAS ABOUT TWO THIRDS DOWN THE RUNWAY THE AIRPLANE'S AIRSPEED WAS INSUFFICIENT TO EFFECT LIFT-OFF. THE PILOT ABORTED THE TAKEOFF BUT THE REMAINING RUNWAY WAS INSUFFICIENT TO STOP THE AIRPLANE ON THE RUNWAY. THE AIRPLANE OVERRAN THE DEPARTURE END OF THE RUNWAY AND ENTERED THE SOFT AND ROUGH TERRAIN AND NOSED OVER ONTO ITS BACK.
NTSB Probable Cause
THE PILOT IMPROPERLY USED THE MIXTURE CONTROL, FAILED TO ATTAIN THE AIRSPEED AND DELAYED IN ABORTING THE TAKEOFF.
Full Narrative
THE PILOT WAS PERFORMING NIGHT TAKEOFFS AND LANDINGS TO BECOME CURRENT FOR NIGHT OPERATIONS. HE DEPARTED RUNWAY 13 AND LANDED ON RUNWAY 31. AFTER LANDING ON RUNWAY 31 AND ROLLING OUT TO THE END OF THE RUNWAY THE PILOT AGAIN DEPARTED RUNWAY 13. THE PILOT FORGOT TO PLACE THE MIXTURE CONTROL IN THE RICH POSITION AND BEGAN THE TAKEOFF ROLL. WHEN THE AIRPLANE WAS ABOUT TWO THIRDS DOWN THE RUNWAY THE AIRPLANE'S AIRSPEED WAS INSUFFICIENT TO EFFECT LIFT-OFF. THE PILOT ABORTED THE TAKEOFF BUT THE REMAINING RUNWAY WAS INSUFFICIENT TO STOP THE AIRPLANE ON THE RUNWAY. THE AIRPLANE OVERRAN THE DEPARTURE END OF THE RUNWAY AND ENTERED THE SOFT AND ROUGH TERRAIN AND NOSED OVER ONTO ITS BACK.
Flight
Event TypeAccident
Event Time23:00 PDT
Nearest AirportGNOSS (0nm)
Runway31
Runway Length3300 ft
Runway Width60 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna C-U206B
Tail NumberN9967M
Aircraft CategoryAir
DamageSubstantial
OperatorBarry John D
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-L · Reciprocating · 300
Seats6
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 42 · Third Class
Conditions
ConditionsVMC
LightBright Night
WindCalm
Visibility30 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0