Individually Owned: 150,657
Corporate Owned: 137,281
Boss Airport
Aircraft Accident/Incident Report
Bronston, Kentucky 42518
Monday, July 8, 2013 16:07 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot stated that he was attempting a soft-field takeoff from a turf runway that he described as “extremely wet and soggy with tall grass.” The airplane became airborne approximately halfway down the 2,500-foot-long runway, and the pilot reported that climb performance was degraded due to hot weather conditions. During the climb, the left landing gear impacted a line of trees past the runway end. The pilot stated that he was unable to maintain airspeed, and the airplane subsequently stalled and impacted an open field, resulting in substantial damage to the left wing. The fuselage was consumed by post-crash fire. The pilot reported there were no mechanical malfunctions or anomalies that would have precluded normal operation of the airplane.
NTSB Probable Cause Narrative
The pilot’s failure to maintain airspeed during takeoff, which resulted in an aerodynamic stall. Contributing to the accident was the airplane’s reduced climb performance due to density altitude, as well as the pilot’s decision to initiate the takeoff from the wet turf runway.
Event Information
| Type of Event | Accident |
| Event Date | 7/8/2013 |
| Event Day of the Week | Monday |
| Time of Event | 1607 |
| Event Time Zone | Central Daylight Time |
| Event City | Bronston |
| Event State | KENTUCKY |
| Event Country | -- |
| Zipcode of the event site | 42518 |
| Event Date Year | 2013 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 365905N |
| Event Location Longitude | 0843714W |
| Event Location Airport | Boss Airport |
| Event Location Nearest Airport ID | 08KY |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 820 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1535 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 10 |
| Weather Observation Facility ID | SME |
| Elevation of weather observation facility | 911 |
| Distance of event from weather observation facility (units?) | 5 |
| 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) | 30 |
| Dew Point at event time (in degress fahrenheit) | 16 |
| Wind Direction (degrees magnetic) | 270 |
| 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) | 30.17 |
| 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 | 2 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 31999 |
| NTSB Notification Source | NTSB Comm Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Oct 23 2013 4:33PM |
| User who most recently changed record | kenj |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N44293 |
| NTSB Number | ERA13CA317 |
| 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 | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | PIPER |
| Aircraft Model | PA-28-151 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 28-7415616 |
| Certified Max Gross Weight | 2325 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 6 2013 12:00AM |
| Airframe hours since last inspection | 1 |
| Airframe Hours | 10500 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | William F Knapp Jr. |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Dry Ridge |
| Aircraft Owner State | KY |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 41035 |
| Operator is an individual? | Yes |
| Operator Name | William F Knapp Jr. |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Dry Ridge |
| Operator State | KY |
| Operator Country | USA |
| Operator Zip code | 41035 |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | 08KY |
| Departure City | Bronston |
| Departure State | KY |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | IOB |
| Destination City | Mt. Sterling |
| Destination State | KY |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 23 2013 4:33PM |
| User who most recently changed record | kenj |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |