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, 2011 · Schweizer 269C · N6128U
Las Vegas, NV
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
June 4, 2011
Injury Outcomes
1 injury (1 serious injury), 1 uninjured
Location
Las Vegas, NV
Aircraft
Schweizer 269C
Tail Number
N6128U
Operator
Airwork
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
WPR11CA250
According to the pilot, while on a sightseeing flight he flew over a mesa and commenced a hover maneuver about 12 feet above a ridge line. When the wind speed increased he attempted to depart the area. The pilot stated that he encountered a strong downdraft in the estimated 20-knot wind. While flying toward lower elevation terrain on the lee side of the mesa in an effort to depart the area, the helicopter's skids impacted rocks and the helicopter rolled over.
NTSB Probable Cause
The pilot's failure to maintain adequate clearance from terrain while attempting a transition from hovering flight to forward flight over a mesa in windy, downdraft conditions.
Full Narrative
According to the pilot, while on a sightseeing flight he flew over a mesa and commenced a hover maneuver about 12 feet above a ridge line. When the wind speed increased he attempted to depart the area. The pilot stated that he encountered a strong downdraft in the estimated 20-knot wind. While flying toward lower elevation terrain on the lee side of the mesa in an effort at departing the area, the helicopter's skids impacted rocks and the helicopter rolled over.
Flight
Event TypeAccident
Event Time10:15 PDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer 269C
Tail NumberN6128U
Aircraft CategoryHeli
DamageSubstantial
OperatorAirwork
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · HIO-360 SER · Reciprocating · 190
Seats3
People & Injuries
Injury Summary1 injury (1 serious injury), 1 uninjured
Fatal0
Serious1
Minor0
Uninjured1
Total2
Crew 1Age 60 · First Class · Serious
Conditions
ConditionsVMC
LightDaylight
Wind100° @ 7 kt, gusting 20 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter29.94 inHg
Weather SourcePILO