Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Sparta, New York 14437
Saturday, August 1, 2009 15:50 EDT
NTSB Narrative Summary Released at Completion of Accident
The student pilot encountered a thermal lift, and climbed to 3,000 feet. He stated in a statement to law enforcement personnel, "I got myself into a spin that I was not sure how to get out of." He further stated, "Somehow I was able to get myself out of that, and was headed back to the airport. This is where it gets vague to me. I think I started into another spin." Another glider pilot who departed 10 to 15 minutes before the student pilot stated he observed the glider about a 1,000 feet or less below him spinning to the left. He made a 360 degree turn looking for the glider and could not see it and figured the pilot recovered from the spin and flew away. Examination of the glider by a Federal Aviation Administration inspector revealed the glider collided with the ground in a nose down left wing attitude. The forward cabin area received structural damage, the left wing was pushed aft and the right wing was accelerated forward. The flaps on both wings were extended. The Pilot's Notes for the L-13 Sailplane states, the glider will stall at 30 knots with the flaps extended. No anomalies were noted with the airframe or flight controls.
NTSB Probable Cause Narrative
The student pilot's failure to maintain airspeed resulting in an aerodynamic stall.
Event Information
| Type of Event | Accident |
| Event Date | 8/1/2009 |
| Event Day of the Week | Saturday |
| Time of Event | 1550 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Sparta |
| Event State | NEW YORK |
| Event Country | -- |
| Zipcode of the event site | 14437 |
| Event Date Year | 2009 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 435744N |
| Event Location Longitude | 0904409W |
| Event Location Airport | -- |
| Event Location Nearest Airport ID | -- |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1554 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 30 |
| Weather Observation Facility ID | DSV |
| Elevation of weather observation facility | 662 |
| Distance of event from weather observation facility (units?) | 2 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 7000 |
| 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) | 28 |
| Dew Point at event time (in degress fahrenheit) | 13 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.99 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 25882 |
| NTSB Notification Source | FAA Eastern ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Nov 19 2009 12:45PM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N66FL |
| NTSB Number | ERA09CA434 |
| 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 | LET |
| Aircraft Model | L13 |
| Aircraft Series Identifier | G |
| Aircraft Serial Number | 026346 |
| Certified Max Gross Weight | 749 |
| Aircraft Category | Glider |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 1 |
| Cabin Crew Seats | -- |
| Passenger Seats | 1 |
| Total number of seats on the aircraft | 2 |
| Number of Engines | 0 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Apr 24 2009 12:00AM |
| Airframe hours since last inspection | 26 |
| Airframe Hours | 3944 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Finger Lakes Soaring Club Inc. |
| Aircraft Owner Street Address | 4 Forbes street |
| Aircraft Owner City | Dansville |
| Aircraft Owner State | NY |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 14437 |
| Operator is an individual? | No |
| Operator Name | David V. Vanderlinden |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 9555 US Route 20 A |
| Operator City | Hemlock |
| Operator State | NY |
| Operator Country | USA |
| Operator Zip code | 14466 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| 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 | No |
| Departure Airport Code | DSV |
| Departure City | Dansville |
| Departure State | NY |
| Departure Country | USA |
| Departure Time | 1514 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | DSV |
| Destination City | Dansville |
| Destination State | NY |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Nov 19 2009 12:47PM |
| User who most recently changed record | johb |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |