Westport Airport
Aircraft Accident/Incident Report

Westport, New York 12993
Monday, July 26, 2004 16:50 EDT

NTSB Narrative Summary Released at Completion of Accident

The pilot had approximately 900 hours of total flight experience, and performed aerobatics often. He had been performing aerobatics throughout the day. During the aerobatic routines, the engine noise would cease during a dive, and then return during the recovery. The pilot had completed about 10 minutes of an approximate 15-minute aerobatic routine. The first 10 minutes seemed normal. However, the airplane then performed an unusual maneuver, never seen before, and descended in a spiraling nose down attitude. It did not appear that the pilot attempted to recover from the dive, or jettison the canopy. Witnesses reported that there was no engine noise during the last maneuver. Examination of the wreckage revealed fuel in the fuel tank. There was no forward travel at the accident site, or rotational signatures on the propeller. The pilot's autopsy report revealed that he had severe coronary artery disease, and may have suffered a momentary loss of consciousness, but blood at the scene was consistent with heart action continuing during impact.

NTSB Probable Cause Narrative

The pilot's loss of aircraft control while maneuvering, due to incapacitation, which resulted in a collision with terrain.

Event Information

Type of Event Accident
Event Date 7/26/2004
Event Day of the Week Monday
Time of Event 1650
Event Time Zone Eastern Daylight Time
Event City Westport
Event State NEW YORK
Event Country --
Zipcode of the event site 12993
Event Date Year 2004
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 440930N
Event Location Longitude 0732558W
Event Location Airport Westport Airport
Event Location Nearest Airport ID N25
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0.5
Degrees magnetic from airport 300
Airport Elevation 276
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1654 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 50
Weather Observation Facility ID BTV
Elevation of weather observation facility 335
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 4000
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 15
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.13
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 18034
NTSB Notification Source EROC
NTSB Notification Date Jul 26 2004 12:00AM
NTSB Notification Time 1800
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 7 2005 10:33AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Albany, NY

Aircraft Involved

Aircraft #1

Aircraft Registration Number N45KY
NTSB Number NYC04LA178
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Garrett
Aircraft Model Stephens Akro
Aircraft Series Identifier --
Aircraft Serial Number 45
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 17 2003 12:00AM
Airframe hours since last inspection 10
Airframe Hours 478
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Dynavia Inc.
Aircraft Owner Street Address --
Aircraft Owner City Wilmington
Aircraft Owner State DE
Aircraft Owner Country USA
Aircraft Owner Zipcode 19808
Operator is an individual? No
Operator Name Jaroslav V Svoboda
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Montreal
Operator State --
Operator Country CA
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code N25
Departure City Westport
Departure State NY
Departure Country USA
Departure Time 1630
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code N25
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Maneuvering
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record May 3 2005 10:05AM
User who most recently changed record PEAR
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --