Botsford Airport
Aircraft Accident/Incident Report

Wellington, Ohio 44090
Saturday, August 28, 1999 13:45 EDT

NTSB Narrative Summary Released at Completion of Accident

The glider was towed to an altitude of 2,000 feet above the ground, and released. The pilot then flew the glider to the base of a cloud in search of a thermal. When the pilot decided to return to the airport, he experienced a downdraft of about 600 feet per minute, which descended the glider to an altitude of about 950 feet. The pilot recalled that the normal sink rate for the glider was about 150 feet per minute. As the glider was landing, it cleared marked wires that were located at the approach end of the runway, and touched down about 100 feet prior to a mowed grass runway area.

NTSB Probable Cause Narrative

The pilot's failure to attain the proper touchdown point. A factor related to the accident was a downdraft.

Event Information

Type of Event Accident
Event Date 8/28/1999
Event Day of the Week Saturday
Time of Event 1345
Event Time Zone Eastern Daylight Time
Event City WELLINGTON
Event State OHIO
Event Country --
Zipcode of the event site 44090
Event Date Year 1999
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport BOTSFORD AIRPORT
Event Location Nearest Airport ID 67D
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 864
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1354 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 50
Weather Observation Facility ID CLE
Elevation of weather observation facility 792
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 3800
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 6
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 2468
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) 1326
NTSB Notification Source --
NTSB Notification Date Aug 30 1999 12:00AM
NTSB Notification Time 845
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jan 10 2001 10:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N286BA
NTSB Number NYC99LA215
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Let
Aircraft Model L-33-SOLO
Aircraft Series Identifier L-33-SOLO
Aircraft Serial Number 940313
Certified Max Gross Weight 750
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 --
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 3 1999 12:00AM
Airframe hours since last inspection 140
Airframe Hours 140
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WINDSOR AVIATION CORP
Aircraft Owner Street Address 80 KING ST
Aircraft Owner City OBERLIN
Aircraft Owner State OH
Aircraft Owner Country
Aircraft Owner Zipcode 44074
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
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 Yes
Departure Airport Code 67D
Departure City
Departure State
Departure Country
Departure Time 1330
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 10 2001 12:27PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 36
Runway Length 2850
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --