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 16, 1983 · Ryan Navion · N4613K
Ischua, NY
Overview
Report Status
Preliminary report
Event Type
Accident
Date
October 16, 1983
Injury Outcomes
2 injuries (2 serious injuries)
Location
Ischua, NY
Aircraft
Ryan Navion
Tail Number
N4613K
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
NYC84FFJ01
THE ACFT HAD BEEN PARKED AT THE ARPT FOR ABOUT 7 MONTHS PRIOR TO THIS FLT. DURING THAT TIME, THE ENG HAD BEEN OVERHAULED. BEFORE TAKING OFF ON A MAINTENANCE TEST FLT, 37 GAL OF FUEL WAS ADDED TO THE CENTER TANK. ALSO, THE PLT WAS OBSERVED WORKING IN THE ENG AREA BEFORE TAKING OFF. AFTER TAKEOFF, THE ACFT WAS OBSERVED TO TURN TO A DOWNWIND LEG, THEN THE ENG BEGAN TO RUN ROUGH & FINALLY QUIT RUNNING. DURING AN EMERGENCY LANDING, THE ACFT HIT AN EMBANKMENT BEFORE REACHING THE RWY. BOTH OCCUPANTS RECEIVED HEAD INJURIES & COULD NOT REMEMBER DETAILS OF THE ACCIDENT. A POST ACCIDENT INSPECTION REVEALED A LOOSE B-NUT ON A FLEX LINE TO THE FUEL STRAINER. THE EXTERIOR OF THE ENGINE WAS BADLY DAMAGE. A TEARDOWN OF THE ENG DID NOT REVEAL ANY DISCREPANCIES THAT WOULD HAVE RESULTED IN A POWER LOSS.
Full Narrative
THE ACFT HAD BEEN PARKED AT THE ARPT FOR ABOUT 7 MONTHS PRIOR TO THIS FLT. DURING THAT TIME, THE ENG HAD BEEN OVERHAULED. BEFORE TAKING OFF ON A MAINTENANCE TEST FLT, 37 GAL OF FUEL WAS ADDED TO THE CENTER TANK. ALSO, THE PLT WAS OBSERVED WORKING IN THE ENG AREA BEFORE TAKING OFF. AFTER TAKEOFF, THE ACFT WAS OBSERVED TO TURN TO A DOWNWIND LEG, THEN THE ENG BEGAN TO RUN ROUGH & FINALLY QUIT RUNNING. DURING AN EMERGENCY LANDING, THE ACFT HIT AN EMBANKMENT BEFORE REACHING THE RWY. BOTH OCCUPANTS RECEIVED HEAD INJURIES & COULD NOT REMEMBER DETAILS OF THE ACCIDENT. A POST ACCIDENT INSPECTION REVEALED A LOOSE B-NUT ON A FLEX LINE TO THE FUEL STRAINER. THE EXTERIOR OF THE ENGINE WAS BADLY DAMAGE. A TEARDOWN OF THE ENG DID NOT REVEAL ANY DISCREPANCIES THAT WOULD HAVE RESULTED IN A POWER LOSS.
Flight
Event TypeAccident
Event Time15:00 EDT
Nearest AirportOlean Muni (0nm N)
Runway22
Runway Length4700 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRyan Navion
Tail NumberN4613K
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-470-H · Reciprocating · 260
Seats4
People & Injuries
Injury Summary2 injuries (2 serious injuries)
Fatal0
Serious2
Minor0
Uninjured0
Total2
Crew 1Age 49 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind220° @ 10 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point61 F / 0 C
Altimeter0
Weather SourceWIT