Sky Haven Airpark Airport
Aircraft Accident/Incident Report

Vera, Oklahoma 70455
Sunday, September 14, 2008 18:44 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot entered the traffic pattern in the single seat, tail-wheel-equipped, experimental airplane for landing to runway 35. When he turned to final approach "everything looked normal." On short final, the pilot stated that he saw orange markers on wires just prior to contact with transmission lines. After cutting through two transmission lines, the pilot aborted the landing and performed a go-around. A visual inspection from another aircraft confirmed that the landing gear appeared to be intact. The pilot stated that the airplane was "shaking violently," but was controllable, and the pilot landed safely. The pilot shut down after landing and exited the aircraft normally. A Federal Aviation Administration inspector responded to the scene and confirmed substantial damage to the main wing spar, left aileron, and landing gear. One propeller blade was missing approximately 18 inches. The electrical transmission lines were replaced by the local power company.

NTSB Probable Cause Narrative

The pilot's failure to maintain clearance from marked transmission lines while on final approach.

Event Information

Type of Event Accident
Event Date 9/14/2008
Event Day of the Week Sunday
Time of Event 1844
Event Time Zone Central Daylight Time
Event City Vera
Event State OKLAHOMA
Event Country --
Zipcode of the event site 70455
Event Date Year 2008
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 362526N
Event Location Longitude 0955407W
Event Location Airport Sky Haven Airpark
Event Location Nearest Airport ID OK01
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 1853 Central Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID KTUL
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) 14
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) 20
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 13
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.09
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 24536
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 Jan 22 2009 12:19PM
User who most recently changed record lema
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N531MS
NTSB Number DFW08CA229
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 SUKHOI
Aircraft Model SU-31M
Aircraft Series Identifier --
Aircraft Serial Number 02-01
Certified Max Gross Weight --
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 20 2008 12:00AM
Airframe hours since last inspection --
Airframe Hours 261
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name GILHOUSEN KLEIN S
Aircraft Owner Street Address 599 HIGHTOWER RD
Aircraft Owner City BOZEMAN
Aircraft Owner State MT
Aircraft Owner Country USA
Aircraft Owner Zipcode 59718-8163
Operator is an individual? Yes
Operator Name Michael Steveson
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Scottsdale
Operator State AZ
Operator Country USA
Operator Zip code 85255
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 No
Departure Airport Code KGCM
Departure City Claremore
Departure State OK
Departure Country USA
Departure Time 1820
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code OK01
Destination City Vera
Destination State OK
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 4 2008 2:25PM
User who most recently changed record gamw
Since inspection or accident Last Inspection
Event Location Runway Number and Location 35
Runway Length 4400
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --