Individually Owned: 151,845
Corporate Owned: 143,699
N/A Airport
Aircraft Accident/Incident Report
Easton, Minnesota 56025
Sunday, May 5, 2013 19:30 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot performed aerobatic maneuvers for about 5 minutes near a friend's farm and then departed the area. About a minute later, the airplane reappeared and began a left bank that became a spiral descent until ground impact. An examination of the airplane revealed no preimpact anomalies that would have precluded normal operation. The autopsy revealed that the pilot had severe coronary artery stenosis in the proximal left anterior descending coronary artery. According to the pilot's wife, although he had symptoms that may have been related to this disease, he had not received medical attention for them, so the disease was undiagnosed. She added that he had experienced dizziness while previously flying aerobatic maneuvers. In addition, both the pilot's father and grandfather experienced premature sudden cardiac death, which doubled the his risk of having sudden cardiac death. The autopsy was unable to determine whether an acute cardiac event occurred at the time of the accident. However, based on the pilot's recent medical symptoms, severe fixed coronary artery stenosis, and family history of sudden cardiac death and the additional physiologic stress of performing aerobatics, it is likely that the pilot became incapacitated due to an acute cardiac event and lost control of the airplane.
NTSB Probable Cause Narrative
The pilot's medical incapacitation due to an acute cardiac event after performing aerobatic maneuvers.
Event Information
| Type of Event | Accident |
| Event Date | 5/5/2013 |
| Event Day of the Week | Sunday |
| Time of Event | 1930 |
| Event Time Zone | Central Daylight Time |
| Event City | Easton |
| Event State | MINNESOTA |
| Event Country | -- |
| Zipcode of the event site | 56025 |
| Event Date Year | 2013 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 434307N |
| Event Location Longitude | 0935404W |
| Event Location Airport | N/A |
| 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 | 1935 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 354 |
| Weather Observation Facility ID | KMKT |
| Elevation of weather observation facility | 1020 |
| Distance of event from weather observation facility (units?) | 30 |
| Time Zone of the weather observation | CDT |
| 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) | 16 |
| Dew Point at event time (in degress fahrenheit) | 9 |
| Wind Direction (degrees magnetic) | 360 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | -- |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.09 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KMKT 060035Z AUTO 36006KT 10SM CLR 16/09 A30 |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 32247 |
| NTSB Notification Source | Federal Aviation Administratio |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Nov 18 2013 11:51AM |
| User who most recently changed record | folm |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7KE |
| NTSB Number | CEN13LA256 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | ESKILDSEN |
| Aircraft Model | STEEN SKYBOLT |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 1 |
| Certified Max Gross Weight | -- |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | Yes |
| Flight Crew Seats | -- |
| 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 | Apr 20 2012 12:00AM |
| Airframe hours since last inspection | 18 |
| Airframe Hours | 1295 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | CONSTRUCTION ENGINEERING SERVICES LLC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | MANKATO |
| Aircraft Owner State | MN |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 56001-5248 |
| Operator is an individual? | No |
| Operator Name | CONSTRUCTION ENGINEERING SERVICES LLC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | MANKATO |
| Operator State | MN |
| Operator Country | USA |
| Operator Zip code | 56001-5248 |
| 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 | No |
| Departure Airport Code | MKT |
| Departure City | Mankato |
| Departure State | MN |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | MKT |
| Destination City | Mankato |
| Destination State | MN |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Nov 19 2013 9:36PM |
| User who most recently changed record | folm |
| 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 | -- |