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
October 30, 1987 · Agusta 109A · N109AM
Spring Valley, NY
Overview
Report Status
Preliminary report
Event Type
Accident
Date
October 30, 1987
Injury Outcomes
No injuries (1 uninjured)
Location
Spring Valley, NY
Aircraft
Agusta 109A
Tail Number
N109AM
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC88LA020
THE HELICOPTER HAD BEEN REFUELED AND THE PILOT WAS ATTEMPTING TO GROUND TAXI. PRIOR TO TURNING THE AIRCRAFT AROUND TO TAXI TO A PARKING AREA THE HELICOPTER WENT INTO GROUND RESONANCE AS SOON AS THE AIRCRAFT WAS MOVED. COLLECTIVE WAS LOWERED, THE ENGINE RETARDED AND THE ROTOR BRAKES APPLIED BUT GROUND RESONANCE CONTINUED UNTIL THE MAIN ROTOR BLADES CONTACTED THE PAVEMENT.
Full Narrative
THE HELICOPTER HAD BEEN REFUELED AND THE PILOT WAS ATTEMPTING TO GROUND TAXI. PRIOR TO TURNING THE AIRCRAFT AROUND TO TAXI TO A PARKING AREA THE HELICOPTER WENT INTO GROUND RESONANCE AS SOON AS THE AIRCRAFT WAS MOVED. COLLECTIVE WAS LOWERED, THE ENGINE RETARDED AND THE ROTOR BRAKES APPLIED BUT GROUND RESONANCE CONTINUED UNTIL THE MAIN ROTOR BLADES CONTACTED THE PAVEMENT.
Flight
Event TypeAccident
Event Time15:30 EST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAgusta 109A
Tail NumberN109AM
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20B · Turboshaft · 420
Seats8
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 51 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind260° @ 10 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point61 F / 0 C
Altimeter30.00 inHg
Weather SourcePILO