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
August 6, 1988 · Bell 206B · N300TW
Enterprise, OR
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 6, 1988
Injury Outcomes
No injuries (2 uninjured)
Location
Enterprise, OR
Aircraft
Bell 206B
Tail Number
N300TW
Operator
Rambling Rotors
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA88LA147
WHILE IN CRUISE FLT AT ABT 500 FT AGL, THE PLT STATED HE HEARD A 'PING' SOUND FROM THE ENG AND PWR DECREASED TO FLT IDLE. AN AUTOROTATION WAS ATTEMPTED INTO A CLEARED UPSLOPING AREA BUT THE PLT HAD TO PULL 'UP' COLLECTIVE IN ORDER TO CLEAR A FENCE. A HARD LANDING RESULTED, CAUSING THE MAIN ROTOR TO CONTACT THE TAILBOOM. IN-DEPTH INVESTIGATION OF THE ENGINE FAILED TO REVEAL THE CAUSE OF THE ENGINE SPOOL-DOWN.
Full Narrative
WHILE IN CRUISE FLT AT ABT 500 FT AGL, THE PLT STATED HE HEARD A 'PING' SOUND FROM THE ENG AND PWR DECREASED TO FLT IDLE. AN AUTOROTATION WAS ATTEMPTED INTO A CLEARED UPSLOPING AREA BUT THE PLT HAD TO PULL 'UP' COLLECTIVE IN ORDER TO CLEAR A FENCE. A HARD LANDING RESULTED, CAUSING THE MAIN ROTOR TO CONTACT THE TAILBOOM. IN-DEPTH INVESTIGATION OF THE ENGINE FAILED TO REVEAL THE CAUSE OF THE ENGINE SPOOL-DOWN.
Flight
Event TypeAccident
Event Time06:05 PDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 206B
Tail NumberN300TW
Aircraft CategoryHeli
DamageSubstantial
OperatorRambling Rotors
Operating RulePart 137
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 420
Seats5
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 54 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility30 sm
CeilingNone
Temperature / Dew Point61 F / 0 C
Altimeter0
Weather SourcePILO