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
December 15, 2025 · Bell 407 · N404LL
Las Vegas, NV
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 15, 2025
Injury Outcomes
No injuries (4 uninjured)
Location
Las Vegas, NV
Aircraft
Bell 407 (2000)
Tail Number
N404LL
Operator
Air Methods
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR26LA062
The aircrew conducted an air medical flight and landed at a hospital, received a patient from the hospital, and flew the patient to a different medical facility. During the post-flight inspection of the helicopter following the second flight, a dent was found in the vertical stabilizer, and a dent was found in one of the tail rotor blades, which was substantial damage. The time and source of the damage was not determined.
NTSB Probable Cause
Aircraft-Aircraft propeller/rotor-Tail rotor-Tail rotor blade-Damaged/degraded
Full Narrative
The aircrew conducted an air medical flight and landed at a hospital, received a patient from the hospital, and flew the patient to a different medical facility. During the post-flight inspection of the helicopter following the second flight, a dent was found in the vertical stabilizer, and a dent was found in one of the tail rotor blades, which was substantial damage. The time and source of the damage was not determined.
Flight
Event TypeAccident
Event Time02:18 PST
Nearest Airport0nm
Flight Plan FiledVFR
Flight Plan ActivatedYes
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 407
Tail NumberN404LL
Aircraft CategoryHeli
DamageSubstantial
OperatorAir Methods
Operating RulePart 135
Engines1
Engine TypeTurboshaft
Engine DetailsRolls-Royce · 250-C47B · Turboshaft · 700
Seats5
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1None
Crew 2None
Crew 3None
Crew 4Age 48 · Second Class · None
Conditions
ConditionsVMC
LightNight
WindCalm
CeilingNone
Temperature / Dew Point48 / 23 C
Altimeter30.21 inHg
Observation Time01:56
Weather SourcePILO