Hartness State Airport
Aircraft Accident/Incident Report

Chester, Vermont 05143
Sunday, July 4, 1993 13:00 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT REPORTED THAT HE ATTEMPTED TO RETURN TO THE AIRPORT AFTER A LOCAL SOARING FLIGHT. HE ENCOUNTERED A 'SUDDEN HEAVY SINK' AND IMPACTED TREES NEAR A FIELD LOCATED ABOUT TWO MILES FROM THE AIRPORT.

NTSB Probable Cause Narrative

THE PILOT'S INADEQUATE INFLIGHT PLANNING AND AN IN FLIGHT ENCOUNTER WITH A DOWNDRAFT WHILE ON FINAL APPROACH.

Event Information

Type of Event Accident
Event Date 7/4/1993
Event Day of the Week Sunday
Time of Event 1300
Event Time Zone Eastern Daylight Time
Event City CHESTER
Event State VERMONT
Event Country --
Zipcode of the event site 05143
Event Date Year 1993
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport HARTNESS STATE
Event Location Nearest Airport ID VSF
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 2
Degrees magnetic from airport --
Airport Elevation 577
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1255 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 200
Weather Observation Facility ID LEB
Elevation of weather observation facility 598
Distance of event from weather observation facility (units?) 30
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 25
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 966
NTSB Notification Source --
NTSB Notification Date Jul 4 1993 12:00AM
NTSB Notification Time 1615
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:27PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N164SS
NTSB Number BFO93LA108
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Burkhart Grob
Aircraft Model SPEED ASTIR II
Aircraft Series Identifier SPEED ASTI
Aircraft Serial Number 4020
Certified Max Gross Weight 1135
Aircraft Category Glider
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 12 1992 12:00AM
Airframe hours since last inspection 64
Airframe Hours 220
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name LOUIS GROUNDAL
Aircraft Owner Street Address 5 BROOKWOOD DRIVE
Aircraft Owner City NEWTON
Aircraft Owner State CT
Aircraft Owner Country
Aircraft Owner Zipcode 06470
Operator is an individual? --
Operator Name LOUIS GROUNDAL
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 5 BROOKWOOD DRIVE
Operator City NEWTON
Operator State CT
Operator Country
Operator Zip code 06470
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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 No
Departure Airport Code VSF
Departure City SPRINGFIELD
Departure State VT
Departure Country
Departure Time 1200
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code VSF
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --