Tullahoma Regional Airport
Aircraft Accident/Incident Report

Tullahoma, Tennessee 37388
Saturday, September 28, 2002 13:00 CDT

NTSB Narrative Summary Released at Completion of Accident

According to the student pilot, he was on his 17th solo flight at the time of the accident. After getting a car-tow, he climbed to 1100 feet, and maneuvered until he had descended to 600 feet. At this altitude, the student pilot elected to return to the airport. He entered the left traffic pattern for runway 06. As he turned onto the base leg of the approach, he realized that he was low and the wind continued to blow the glider away from the runway. The student pilot elected to turn final. Being concerned about the loss of altitude, the pilot decided to raise the nose in an effort to extend the glide. The student pilot said that this maneuver allowed the glider to clear most of the trees on the approach end of the runway, but the right wing collided with the top of a tree. The glider spun around and fell into a small grove of trees short of the runway.

NTSB Probable Cause Narrative

The student pilot misjudged the airspeed and altitude during a visual approach to land that resulted in the in-flight collision with the trees.

Event Information

Type of Event Accident
Event Date 9/28/2002
Event Day of the Week Saturday
Time of Event 1300
Event Time Zone Central Daylight Time
Event City Tullahoma
Event State TENNESSEE
Event Country --
Zipcode of the event site 37388
Event Date Year 2002
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 352254N
Event Location Longitude 0861448W
Event Location Airport Tullahoma Regional Airport
Event Location Nearest Airport ID KTHA
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 --
Weather Briefing Completeness Partial - limited by pilot
Investigator's weather source Weather Observation Facility
Time of the weather observation 1350 Central Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID MQY
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 1000
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 25
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 1018
Density Altitude (feet) 850
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 13678
NTSB Notification Source FAA
NTSB Notification Date Oct 18 2002 12:00AM
NTSB Notification Time 1421
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 23 2003 8:35AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Nashville FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8747
NTSB Number ATL02LA177
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 Schempp-Hirth
Aircraft Model KA8B
Aircraft Series Identifier --
Aircraft Serial Number 8639-SH
Certified Max Gross Weight 685
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 --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name University Tn Space Institute
Aircraft Owner Street Address --
Aircraft Owner City Tullahoma
Aircraft Owner State TN
Aircraft Owner Country USA
Aircraft Owner Zipcode 37388
Operator is an individual? No
Operator Name David A. Ball
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 7151 Creech Road
Operator City Courtland
Operator State NY
Operator Country USA
Operator Zip code 13045
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) Instructional
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code THA
Departure City Tullahoma
Departure State TN
Departure Country USA
Departure Time 1100
Departure Time Zone CDT
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 Approach
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record May 28 2003 1:06PM
User who most recently changed record POWP
Since inspection or accident --
Event Location Runway Number and Location 06
Runway Length 5400
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --