Individually Owned: 150,657
Corporate Owned: 137,281
Seminole Lake Gliderport Airport
Aircraft Accident/Incident Report
Groveland, Florida 34736
Wednesday, March 13, 2013 13:30 EDT
NTSB Narrative Summary Released at Completion of Accident
The pilot of the tailwheel-equipped airplane reported that he was conducting glider-tow operations, which were departing into the wind; the gliders were then landing in the opposite direction with a tailwind. After an uneventful glider tow and release, the airplane was returning to the airport to conduct a second glider tow. While turning to the base leg of the airport traffic pattern, a tailwind gust caused the airplane to lose about 10 mph of airspeed. To compensate, the pilot increased engine power and increased the airspeed from 60 mph to 80 mph, where it remained until touchdown. The pilot further stated that the airplane touched down "too fast" about 600 feet down the runway. He was concerned that the airplane would collide with gliders at the end of the runway, so he applied heavy braking, which caused the airplane to nose over and come to rest inverted on the runway. Examination of the airplane revealed substantial damage to the left wing; no preimpact mechanical malfunctions that would have precluded normal airplane operation were observed, nor did the pilot report any. The pilot added that he should have performed a go-around when the tailwind gust upset the approach on base leg. Recorded weather near the accident site indicated a tailwind of 8 knots, gusting to 15 knots.
NTSB Probable Cause Narrative
The pilot's failure to maintain the proper airspeed during a tailwind approach, his improper decision to continue a fast approach with a tailwind rather than go around, and his improper use of the wheel brakes during the landing roll.
Event Information
| Type of Event | Accident |
| Event Date | 3/13/2013 |
| Event Day of the Week | Wednesday |
| Time of Event | 1330 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Groveland |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 34736 |
| Event Date Year | 2013 |
| Event Date Month | 3 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 282421N |
| Event Location Longitude | 0815016W |
| Event Location Airport | Seminole Lake Gliderport |
| Event Location Nearest Airport ID | 6FL0 |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| 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 | 1335 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 230 |
| Weather Observation Facility ID | ZPH |
| Elevation of weather observation facility | 90 |
| Distance of event from weather observation facility (units?) | 15 |
| Time Zone of the weather observation | EDT |
| 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) | 21 |
| Dew Point at event time (in degress fahrenheit) | -2 |
| Wind Direction (degrees magnetic) | 340 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 15 |
| Altimeter Setting at event time (in. Hg) | 30.18 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 31313 |
| 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 | May 3 2013 11:40AM |
| User who most recently changed record | kenj |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7329Z |
| NTSB Number | ERA13CA164 |
| 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 | PIPER |
| Aircraft Model | PA-25-235 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 25-3279 |
| Certified Max Gross Weight | 2900 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 1 |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 1 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | TAMPA BAY SOARING SOCIETY INC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | ZEPHYRHILLS |
| Aircraft Owner State | FL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 33542-5833 |
| Operator is an individual? | No |
| Operator Name | TAMPA BAY SOARING SOCIETY INC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | ZEPHYRHILLS |
| Operator State | FL |
| Operator Country | USA |
| Operator Zip code | 33542-5833 |
| 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) | Glider Tow |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | 6FL0 |
| Departure City | Groveland |
| Departure State | FL |
| Departure Country | USA |
| Departure Time | 1315 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | 6FL0 |
| Destination City | Groveland |
| Destination State | FL |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | May 3 2013 11:41AM |
| User who most recently changed record | kenj |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 18 |
| Runway Length | 3000 |
| Runway Width | 200 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |