Individually Owned: 151,491
Corporate Owned: 139,368
Seminole Lake Gliderport Airport
Aircraft Accident/Incident Report
Clermont, Florida 34714
Thursday, September 17, 2009 10:25 EDT
NTSB Narrative Summary Released at Completion of Accident
The certificated flight instructor and his student were on approach, in a glider. The student was attempting to make a no-airbrake landing. While on approach, the student was using a forward slip to correct the altitude. The instructor reported that his student’s aggressive control inputs made the aircraft too slow and too low to reach the airfield. The instructor took over the controls and decided to make an off-field landing. While landing, the glider’s right wing impacted tall grass. The flight instructor reported that the aircraft ground looped to the right causing substantial damage to the rudder and empennage. Neither the flight instructor nor the student reported any mechanical failures or malfunctions of the airplane.
NTSB Probable Cause Narrative
The flight instructor's delayed remedial action resulting in an off-airfield landing and ground loop.
Event Information
| Type of Event | Accident |
| Event Date | 9/17/2009 |
| Event Day of the Week | Thursday |
| Time of Event | 1025 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Clermont |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 34714 |
| Event Date Year | 2009 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 282421N |
| Event Location Longitude | 0815027W |
| Event Location Airport | Seminole Lake Gliderport |
| Event Location Nearest Airport ID | 6FL0 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 120 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1353 Coordinated Universal Time? Same as GMT |
| Direction of event from weather observation facility (degrees) | 180 |
| Weather Observation Facility ID | KGIF |
| Elevation of weather observation facility | 145 |
| Distance of event from weather observation facility (units?) | 21 |
| Time Zone of the weather observation | UTC |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| 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) | 29 |
| Dew Point at event time (in degress fahrenheit) | 22 |
| Wind Direction (degrees magnetic) | 130 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.02 |
| Density Altitude (feet) | -- |
| 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 | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 26212 |
| NTSB Notification Source | FAA Southern ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Dec 15 2009 1:05PM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N308BG |
| NTSB Number | ERA09CA525 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | Unknown |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | BURKHART GROB |
| Aircraft Model | G-103A TWI |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 34033-K-265 |
| Certified Max Gross Weight | 12499 |
| Aircraft Category | Glider |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 2 |
| Number of Engines | 0 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Apr 1 2009 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 4885 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | SEMINOLE FLYING & SOARING INC |
| Aircraft Owner Street Address | PO BOX 135516 |
| Aircraft Owner City | CLERMONT |
| Aircraft Owner State | FL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 34713-5516 |
| Operator is an individual? | No |
| Operator Name | SEMINOLE FLYING & SOARING INC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | PO BOX 135516 |
| Operator City | CLERMONT |
| Operator State | FL |
| Operator Country | USA |
| Operator Zip code | 34713-5516 |
| 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 | Yes |
| Departure Airport Code | 6FL0 |
| Departure City | Clermont |
| Departure State | FL |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | 6FL0 |
| Destination City | Clermont |
| Destination State | FL |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 26 2009 4:35PM |
| User who most recently changed record | muzd |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 18 |
| Runway Length | 3000 |
| Runway Width | 50 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |