Ken Jernstedt Airfield Airport
Aircraft Accident/Incident Report

Hood River, Oregon 97031
Friday, July 11, 2008 11:30 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that the control stick unexpectedly began buffeting while the airplane was cruising at 3,500 feet mean sea level and 120 miles per hour, and he noticed that the left aileron was becoming detached at its outboard hinge. The pilot immediately flew toward a nearby airfield and conducted an emergency landing. The pilot said he observed that another airplane had previously landed in the opposite direction on the same runway, so to ensure adequate clearance from that airplane he landed on the right side of the runway. The pilot additionally reported that he "flew" his airplane onto the runway and landed with a tailwind at a faster than normal airspeed. During rollout, the airplane veered off the side of the runway, encountered an area of soft dirt, and nosed over. The pilot further reported that he observed that the outboard of three aileron hinges was separated from the wing. The pilot opined that the location of the hinges on the aileron may not have been adequate to support the aileron during flight.

NTSB Probable Cause Narrative

The pilot's failure to maintain directional control during the emergency landing roll with a tailwind. Contributing was the partial separation of the left aileron that prompted the pilot to attempt the emergency landing.

Event Information

Type of Event Accident
Event Date 7/11/2008
Event Day of the Week Friday
Time of Event 1130
Event Time Zone Pacific Daylight Time
Event City Hood River
Event State OREGON
Event Country --
Zipcode of the event site 97031
Event Date Year 2008
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 454021N
Event Location Longitude 1213211W
Event Location Airport Ken Jernstedt Airfield
Event Location Nearest Airport ID 4S2
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 631
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1153 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 271
Weather Observation Facility ID CZK
Elevation of weather observation facility 151
Distance of event from weather observation facility (units?) 14
Time Zone of the weather observation PDT
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) 26
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 50
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 11
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.2
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) 25752
NTSB Notification Source FAA
NTSB Notification Date Jul 11 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Sep 8 2009 9:01AM
User who most recently changed record guzj
Basic weather conditions Visual Meteorological Cond
FAA District Office Hillsboro, OR

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8050R
NTSB Number LAX08LA226
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 Jonsson
Aircraft Model Sonerai
Aircraft Series Identifier --
Aircraft Serial Number EJ02
Certified Max Gross Weight 600
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Erik Jonsson
Aircraft Owner Street Address --
Aircraft Owner City Twin Falls
Aircraft Owner State ID
Aircraft Owner Country USA
Aircraft Owner Zipcode 83301
Operator is an individual? Yes
Operator Name Joey D. Petelle
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Sun Valley
Operator State ID
Operator Country USA
Operator Zip code 83353
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 BKE
Departure City Baker City
Departure State OR
Departure Country USA
Departure Time 1000
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code 4S2
Destination City Hood River
Destination State OR
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 21 2009 5:00PM
User who most recently changed record coos
Since inspection or accident --
Event Location Runway Number and Location 25
Runway Length 3040
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --