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
July 21, 1991 · Experimental Brown 2 · N255Y
San Carlos, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 21, 1991
Injury Outcomes
1 injury (1 serious injury)
Location
San Carlos, CA
Aircraft
Experimental Brown 2
Tail Number
N255Y
Operator
William H Turner
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
LAX91LA322
WITNESSES OBSERVED THE NON-RADIO EQUIPPED AIRCRAFT ENTER THE PATTERN IN COMPANY WITH ANOTHER AIRCRAFT AS A FLIGHT OF TWO. THE FIRST AIRCRAFT LANDED, HOWEVER, THE ACCIDENT AIRCRAFT INITIATED A GO AROUND. GROUND WITNESSES SAID THE ENGINE WAS PRODUCING STRONG POWER SOUNDS THROUGH OUT THE SEQUENCE. JUST AFTER THE AIRCRAFT BEGAN THE GO AROUND MANEUVER, THE AIRCRAFT SUDDENLY ROLLED INVERTED AND STRUCK A PARKED AIRCRAFT AND TWO FENCES. FAA AIRWORTHINESS INSPECTORS FROM THE SAN FRANCISCO FLIGHT STANDARDS DISTRICT OFFICE EXAMINED THE AIRCRAFT. CONTROL SYSTEM CONTINUITY WAS TRACED THROUGHOUT THE AIRCRAFT. NO OTHER SYSTEM ABNORMALITIES WERE IDENTIFIED DURING THE EXAMINATION. IN HIS WRITTEN ACCIDENT REPORT, THE PILOT SAID THAT THERE WAS NO MECHANICAL MALFUNCTION OF THE AIRCRAFT.
NTSB Probable Cause
THE FAILURE OF THE PILOT TO MAINTAIN CONTROL OF THE AIRCRAFT DURING THE ATTEMPTED GO AROUND.
Full Narrative
WITNESSES OBSERVED THE NON-RADIO EQUIPPED AIRCRAFT ENTER THE PATTERN IN COMPANY WITH ANOTHER AIRCRAFT AS A FLIGHT OF TWO. THE FIRST AIRCRAFT LANDED, HOWEVER, THE ACCIDENT AIRCRAFT INITIATED A GO AROUND. GROUND WITNESSES SAID THE ENGINE WAS PRODUCING STRONG POWER SOUNDS THROUGH OUT THE SEQUENCE. JUST AFTER THE AIRCRAFT BEGAN THE GO AROUND MANEUVER, THE AIRCRAFT SUDDENLY ROLLED INVERTED AND STRUCK A PARKED AIRCRAFT AND TWO FENCES. FAA AIRWORTHINESS INSPECTORS FROM THE SAN FRANCISCO FLIGHT STANDARDS DISTRICT OFFICE EXAMINED THE AIRCRAFT. CONTROL SYSTEM CONTINUITY WAS TRACED THROUGHOUT THE AIRCRAFT. NO OTHER SYSTEM ABNORMALITIES WERE IDENTIFIED DURING THE EXAMINATION. IN HIS WRITTEN ACCIDENT REPORT, THE PILOT SAID THAT THERE WAS NO MECHANICAL MALFUNCTION OF THE AIRCRAFT.
Flight
Event TypeAccident
Event Time10:15 PDT
Nearest AirportSan Carlos (0nm N)
Runway3
Runway Length2500 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftExperimental Brown 2
Tail NumberN255Y
Aircraft CategoryAir
DamageSubstantial
OperatorWilliam H Turner
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFairchild · 6-440 · Reciprocating · 200
Seats1
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 27 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility15 sm
CeilingNone
Temperature / Dew Point66 F / 0 C
Altimeter0
Observation Time17:15
Weather SourceWFAC