Private Airport
Aircraft Accident/Incident Report

Dike, Iowa 50624
Tuesady, May 10, 2005 17:37 CDT

NTSB Narrative Summary Released at Completion of Accident

The airplane collided with a ditch during an off airport forced following a loss of engine power. The pilot reported that 15 minutes into the flight, the engine rpm started decreasing and he thought he smelled smoke in the cockpit. He reported that he turned off the battery switches and the engine rpm began to increase. The pilot reported he set the engine power to 2,500 rpm and began spiraling down over a private airstrip from an altitude of 4,500 feet above mean sea level (msl) when the engine lost all power. He stated he needed additional power to complete the last 360 degree turn so he elected to land in a field. The airplane struck a fence and a ditch during the landing. Inspection of the airplane and engine failed to reveal any mechanical failure/malfunction which would have resulted in a fire, smoke, or the loss of engine power. The engine was equipped with an electronic ignition system. The pilot reported the accident could have been avoided by making a "better landing on power off."

NTSB Probable Cause Narrative

A loss of engine power for undetermined reasons and the pilot misjudged the forced landing approach. Factors associated with the accident were the fence and the ditch which the airplane contacted.

Event Information

Type of Event Accident
Event Date 5/10/2005
Event Day of the Week Tuesday
Time of Event 1737
Event Time Zone Central Daylight Time
Event City Dike
Event State IOWA
Event Country --
Zipcode of the event site 50624
Event Date Year 2005
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 422500N
Event Location Longitude 0921501W
Event Location Airport Private
Event Location Nearest Airport ID PVT
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 1754 Central Daylight Time
Direction of event from weather observation facility (degrees) 60
Weather Observation Facility ID ALO
Elevation of weather observation facility 873
Distance of event from weather observation facility (units?) 13
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) 25
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.83
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) 18223
NTSB Notification Source FAA
NTSB Notification Date May 10 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Sep 13 2005 12:54PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Des Moines, IA

Aircraft Involved

Aircraft #1

Aircraft Registration Number N824M
NTSB Number CHI05LA113
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 Mattson
Aircraft Model Zenith 601XL
Aircraft Series Identifier --
Aircraft Serial Number 6-4466
Certified Max Gross Weight 1320
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 --
Date of Last Inspection Jan 1 2005 12:00AM
Airframe hours since last inspection --
Airframe Hours 24
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Douglas L. Mattson
Aircraft Owner Street Address --
Aircraft Owner City Dike
Aircraft Owner State IA
Aircraft Owner Country USA
Aircraft Owner Zipcode 50624
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
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 ALO
Departure City Waterloo
Departure State IA
Departure Country USA
Departure Time 1700
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code ALO
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 10 2005 8:09PM
User who most recently changed record SULP
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight --
Air Medical Flight No
Medical Flight --