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, 1984 · Pterodactyl Pfledgling · UNREG
Canandaigua, NY
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 2, 1984
Injury Outcomes
1 injury (1 fatality)
Location
Canandaigua, NY
Aircraft
Pterodactyl Pfledgling
Tail Number
UNREG
Operator
David S Schlenker
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
NYC84FU006
DURING TAKEOFF, THE ULTRALIGHT VEHICLE WAS OBSERVED TO ENTER A STEEP CLIMB. A WITNESS STATED THAT WHEN IT WAS CLIMBING OVER THE MIDPOINT OF THE RWY, IT ENTERED A STEEP DIVE. THE PLT RECOVERED FROM THE DESCENT & BEGAN ANOTHER STEEP CLIMB. AFTER REACHING ABOUT 250 TO 300 FT, THE ULTRALIGHT ENTERED ANOTHER STEEP DIVE. AGAIN, THE PLT STARTED TO RECOVER; HOWEVER, DURING THE PULL-OUT, THE LEFT WING BUCKLED, THEN THE VEHICLE DESCENDED TO THE GROUND & CRASHED. NO PRE-ACCIDENT FATIGUE FAILURE OR PART MALFUNCTION WAS FOUND.
Full Narrative
DURING TAKEOFF, THE ULTRALIGHT VEHICLE WAS OBSERVED TO ENTER A STEEP CLIMB. A WITNESS STATED THAT WHEN IT WAS CLIMBING OVER THE MIDPOINT OF THE RWY, IT ENTERED A STEEP DIVE. THE PLT RECOVERED FROM THE DESCENT & BEGAN ANOTHER STEEP CLIMB. AFTER REACHING ABOUT 250 TO 300 FT, THE ULTRALIGHT ENTERED ANOTHER STEEP DIVE. AGAIN, THE PLT STARTED TO RECOVER; HOWEVER, DURING THE PULL-OUT, THE LEFT WING BUCKLED, THEN THE VEHICLE DESCENDED TO THE GROUND & CRASHED. NO PRE-ACCIDENT FATIGUE FAILURE OR PART MALFUNCTION WAS FOUND.
Flight
Event TypeAccident
Event Time20:50 EDT
Nearest AirportCanandaigua (0nm N)
Runway34
Runway Length1900 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPterodactyl Pfledgling
Tail NumberUNREG
Aircraft CategoryUltr
DamageDestroyed
OperatorDavid S Schlenker
Operating RulePart 103
Engines1
Engine TypeReciprocating
Engine DetailsCuyuna · 430-D · Reciprocating · 30
Seats1
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 24 · Unknown
Conditions
ConditionsVMC
LightDusk
WindCalm
Visibility12 sm
CeilingNone
Temperature / Dew Point68 F / 57
Altimeter0
Observation Time00:50
Weather SourceWFAC