Cottonwood Airport
Aircraft Accident/Incident Report

Rockford, Illinois 61101
Sunday, August 19, 2012 12:45 CDT

NTSB Narrative Summary Released at Completion of Accident

The airplane experienced a partial loss of engine power shortly after takeoff, and the pilot performed a forced landing to a field. Postaccident examination of the engine revealed that a spark plug that the pilot installed about 2 flight hours before the accident had loosened and separated from its cylinder during the accident takeoff. The pilot stated that the accident could have been prevented if the spark plugs were tightened and rechecked when they were installed.

NTSB Probable Cause Narrative

The pilot's improper installation of a spark plug, which led to a partial loss of engine power after takeoff and the resultant forced landing.

Event Information

Type of Event Accident
Event Date 8/19/2012
Event Day of the Week Sunday
Time of Event 1245
Event Time Zone Central Daylight Time
Event City Rockford
Event State ILLINOIS
Event Country --
Zipcode of the event site 61101
Event Date Year 2012
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Cottonwood Airport
Event Location Nearest Airport ID 1C8
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 --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1254 Central Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID RFD
Elevation of weather observation facility 742
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 13000
Lowest Non-Ceiling Height 6000
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 31691
NTSB Notification Source DuPage FSDO
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jul 31 2013 12:14PM
User who most recently changed record bowl
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N942EJ
NTSB Number CEN12LA577
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 Jones
Aircraft Model Kitfox III
Aircraft Series Identifier --
Aircraft Serial Number 942
Certified Max Gross Weight 1050
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Apr 5 2011 12:00AM
Airframe hours since last inspection --
Airframe Hours 300
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Pilot
Aircraft Owner Street Address --
Aircraft Owner City Rockford
Aircraft Owner State IL
Aircraft Owner Country USA
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name Pilot
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Rockford
Operator State IL
Operator Country USA
Operator Zip code --
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 1C8
Departure City Rockford
Departure State IL
Departure Country USA
Departure Time 1245
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 1C8
Destination City Rockford
Destination State IL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 13 2013 5:07PM
User who most recently changed record galm
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 --