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 2, 1992 · Schweizer 269D · N330TT
Watkins Glen, NY
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 2, 1992
Injury Outcomes
No injuries (2 uninjured)
Location
Watkins Glen, NY
Aircraft
Schweizer 269D
Tail Number
N330TT
Operator
Schweitzer Aircraft
Injuries
None
Aircraft Damage
Substantial
NTSB Number
BFO92LA085
DURING A CERTIFICATION TEST FLIGHT INVOLVING A SERIES OF DESCENTS AT LOW ROTOR RPM AND LOW AIRSPEEDS, THE ENGINE OF THE PROTOTYPE HELICOPTER LOST POWER. AN AUTOROTATION WAS INITIATED AND THE AIRCRAFT IMPACTED THE GROUND IN A TAIL LOW CONDITION, CAUSING DAMAGE TO THE TAIL ROTOR AND MAIN ROTOR. THE AIRCRAFT WAS BEING OPERATED AT A HIGH GROSS WEIGHT AND AFT CENTER OF GRAVITY TO MEET CERTIFICATION CRITERIA. THE RIGGING BETWEEN THE THROTTLE AND FUEL CONTROL UNIT WAS EXAMINED AND FOUND TO BE IMPROPERLY SET, CAUSING THE PREVENTION OF CONTINUOUS ENGINE POWER THROUGHOUT THE FLIGHT TEST PROFILE.
NTSB Probable Cause
FUEL STARVATION AS A RESULT OF IMPROPER RIGGING OF THE FUEL CONTROL UNIT.
Full Narrative
DURING A CERTIFICATION TEST FLIGHT INVOLVING A SERIES OF DESCENTS AT LOW ROTOR RPM AND LOW AIRSPEEDS, THE ENGINE OF THE PROTOTYPE HELICOPTER LOST POWER. AN AUTOROTATION WAS INITIATED AND THE AIRCRAFT IMPACTED THE GROUND IN A TAIL LOW CONDITION, CAUSING DAMAGE TO THE TAIL ROTOR AND MAIN ROTOR. THE AIRCRAFT WAS BEING OPERATED AT A HIGH GROSS WEIGHT AND AFT CENTER OF GRAVITY TO MEET CERTIFICATION CRITERIA. THE RIGGING BETWEEN THE THROTTLE AND FUEL CONTROL UNIT WAS EXAMINED AND FOUND TO BE IMPROPERLY SET, CAUSING THE PREVENTION OF CONTINUOUS ENGINE POWER THROUGHOUT THE FLIGHT TEST PROFILE.
Flight
Event TypeAccident
Event Time11:00 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer 269D
Tail NumberN330TT
Aircraft CategoryHeli
DamageSubstantial
OperatorSchweitzer Aircraft
Operating RulePart 91
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250/C2OW · Turboshaft · 420
Seats4
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 39 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind120° @ 3 kt
Visibility30 sm
CeilingNone
Temperature / Dew Point68 F / 50
Altimeter30.00 inHg
Observation Time14:50
Weather SourceWFAC