Private Landing Strip Airport
Aircraft Accident/Incident Report

Castlerock, Minnesota 55010
Tuesady, July 31, 2012 14:10 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot was flying his experimental airplane, practicing touch-and-go landings on his 1,400 foot long private grass airstrip. The weather was clear. During his third touch-and-go, he determined that he was going to land too long so he made a go-around. As he added power for the go-around, he started to feel vibrations and thought that he had a propeller malfunction. The vibrations continued regardless of power setting, so he shut down the engine and intentionally stalled the airplane about 10 feet above the ground to avoid rolling over when the airplane settled to the ground. The airplane came to rest in a corn field. The pilot saw that a fire had started in the engine compartment after ground impact, so he quickly exited the airplane. A post-crash fire then completely consumed the airplane. Examination of the airplane after the accident did not show any evidence of preimpact mechanical malfunction or abnormalities, although the fire damage was too extensive to specifically determine the reason for presumed propeller malfunction. After the examination, the pilot maintained that he was certain that there was a problem with the propeller and that it was the cause of the accident.

NTSB Probable Cause Narrative

Propeller system failure during a go-around maneuver resulting in a forced landing. Contributing to the severity of damage to the airplane was the postimpact fire.

Event Information

Type of Event Accident
Event Date 7/31/2012
Event Day of the Week Tuesday
Time of Event 1410
Event Time Zone Central Daylight Time
Event City Castlerock
Event State MINNESOTA
Event Country --
Zipcode of the event site 55010
Event Date Year 2012
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 443244N
Event Location Longitude 0930812W
Event Location Airport Private Landing Strip
Event Location Nearest Airport ID 000
Indicates whether the acc/inc occurred off or on an airport On Airport
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 1332 Central Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID SYN
Elevation of weather observation facility 920
Distance of event from weather observation facility (units?) 15
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) 28
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 200
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) 30.08
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KSYN 311932Z AUTO 02007KT 10SM CLR 28/06 A3008 RMK
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 31582
NTSB Notification Source FAA Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jul 25 2013 1:21PM
User who most recently changed record rows
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N396BK
NTSB Number CEN12CA597
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name BORDELON BRUCE
Aircraft Model KITFOX IV
Aircraft Series Identifier 1200
Aircraft Serial Number C9400070
Certified Max Gross Weight 1200
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 1
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection May 30 2012 12:00AM
Airframe hours since last inspection 5
Airframe Hours 35
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name SVIEN BENNY H
Aircraft Owner Street Address 3150 280TH ST W
Aircraft Owner City NORTHFIELD
Aircraft Owner State MN
Aircraft Owner Country USA
Aircraft Owner Zipcode 55057-5305
Operator is an individual? No
Operator Name SVIEN BENNY H
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 3150 280TH ST W
Operator City NORTHFIELD
Operator State MN
Operator Country USA
Operator Zip code 55057-5305
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code 000
Departure City Castlerock
Departure State MN
Departure Country USA
Departure Time 1400
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 000
Destination City Castlerock
Destination State MN
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 3 2013 5:42PM
User who most recently changed record lema
Since inspection or accident Time of Accident
Event Location Runway Number and Location 36
Runway Length 1400
Runway Width 80
Sight Seeing flight No
Air Medical Flight No
Medical Flight --