Brennand Airport
Aircraft Accident/Incident Report

Neenah, Wisconsin 54956
Friday, February 23, 2007 12:11 CST

NTSB Narrative Summary Released at Completion of Accident

The gyroplane was substantially damaged when it rolled onto its right side during landing. The pilot reported that he had recently purchased the gyroplane, and while transporting it to his home airport, a trailer tie-down strap had broken and bent the rudder trim tab. The tab was bent back to approximately its original position. The pilot reported that during the initial flight, right rudder was needed to keep the gyroplane straight. When he returned to the airport the gyroplane touched down on the main wheels. It did not come to a full stop before the nose wheel touched down and the gyroplane "jerked hard right." He noted he "forgot to take out the right rudder." His attempts to keep the gyroplane on the runway were unsuccessful, and the right main wheel dropped off the runway pavement. The gyroplane subsequently rolled onto its right side, damaging the main rotor mast and control linkage.

NTSB Probable Cause Narrative

The pilot's failure to maintain directional control during landing, which resulted in a runway excursion. Contributing factors were a bent rudder trim tab, the narrow runway, and the uneven terrain at the edge of the runway pavement.

Event Information

Type of Event Accident
Event Date 2/23/2007
Event Day of the Week Friday
Time of Event 1211
Event Time Zone Central Standard Time
Event City Neenah
Event State WISCONSIN
Event Country --
Zipcode of the event site 54956
Event Date Year 2007
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 440936N
Event Location Longitude 0883334W
Event Location Airport Brennand
Event Location Nearest Airport ID 79C
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 Unknown
Time of the weather observation 1145 Central Standard Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID ATW
Elevation of weather observation facility 918
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 4000
Sky/Lowest/Cloud Conditions Scattered
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) -4
Dew Point at event time (in degress fahrenheit) -9
Wind Direction (degrees magnetic) 50
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30.42
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KATW 231745Z 05007KT 10SM SCT040 BKN100 M04/
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) 21386
NTSB Notification Source FAA
NTSB Notification Date Feb 26 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 25 2007 2:54PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-Milwaukee FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5077F
NTSB Number CHI07CA081
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 Rotary Air Force Marketing
Aircraft Model RAF 2000
Aircraft Series Identifier --
Aircraft Serial Number H2-05-16-649
Certified Max Gross Weight 1320
Aircraft Category Gyrocraft
Aircraft Registration Class --
Aircraft is a homebuilt? No
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 Annual
Date of Last Inspection Jul 1 2006 12:00AM
Airframe hours since last inspection --
Airframe Hours 114
ELT Installed No
ELT Activated --
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name Noel L Marcks
Aircraft Owner Street Address --
Aircraft Owner City Black Creek
Aircraft Owner State WI
Aircraft Owner Country USA
Aircraft Owner Zipcode --
Operator is an individual? Yes
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 79C
Departure City Neenah
Departure State WI
Departure Country USA
Departure Time 1138
Departure Time Zone CST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 22 2007 4:00PM
User who most recently changed record DINC
Since inspection or accident Time of Accident
Event Location Runway Number and Location 18
Runway Length 2450
Runway Width 20
Sight Seeing flight No
Air Medical Flight No
Medical Flight --