Capital Drive Airport
Aircraft Accident/Incident Report

Waukesha, Wisconsin 53186
Wednesday, September 26, 1990 15:00 CDT

NTSB Narrative Summary Released at Completion of Accident

THE STUDENT PILOT REPORTED THAT HE WAS LANDING TO THE NORTH AT AN UNCONTROLLED AIRPORT WHEN THE LEFT WING OF THE MOTOR GLIDER AIRPLANE HE WAS FLYING STRUCK A TRACTOR TYPE LAWM MOWER. HE SAID THAT WHEN HE INITIALLY SAW THE MOWER IT WAS ABOUT 80 FEET FROM THE RUNWAY. THE NEXT TIME THAT HE SAW IT, IT WAS APPROXIMATELY 3 FEET FROM THE RUNWAY'S LEFT EDGE. THE OPERATOR OF THE MOWER SAID THAT HE WAS DRIVING THE MOWER ON THE WEST SIDE OF THE RUNWAY WITH HIS BACK TO THE APPROACHING AIRPLANE. HE DID NOT SEE OR HEAR THE AIRPLANE UNTIL IT HIT THE MOWER.

NTSB Probable Cause Narrative

THE PILOT'S FAILURE TO MAINTAIN ADEQUATE CLEARANCE AND VISUAL LOOKOUT FOR THE MOVING TRACTOR.

Event Information

Type of Event Accident
Event Date 9/26/1990
Event Day of the Week Wednesday
Time of Event 1500
Event Time Zone Central Daylight Time
Event City WAUKESHA
Event State WISCONSIN
Event Country --
Zipcode of the event site 53186
Event Date Year 1990
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CAPITAL DRIVE
Event Location Nearest Airport ID O26
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 850
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 8
Air Temperature at event time (in degrees celsius) -18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 130
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 1
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1475
NTSB Notification Source --
NTSB Notification Date Sep 26 1990 12:00AM
NTSB Notification Time 1835
Fiche Number and/or location -used to find docket information 42784
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N912G
NTSB Number CHI90LA274
Missing Aircraft Indicator N
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 Burkhart Grob
Aircraft Model 109A
Aircraft Series Identifier 109A
Aircraft Serial Number 6143
Certified Max Gross Weight 1820
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ARTHUR L. DAUN, JR.
Aircraft Owner Street Address 918 W. SUNSET DR.
Aircraft Owner City WAUKESHA
Aircraft Owner State WI
Aircraft Owner Country
Aircraft Owner Zipcode 53186
Operator is an individual? --
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? No
Certified for Part 133 or 137 Operation Unknown
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) Instructional
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code HXF
Departure City HARTFORD
Departure State WI
Departure Country
Departure Time 1435
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
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 Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 3
Runway Length 3500
Runway Width 45
Sight Seeing flight No
Air Medical Flight No
Medical Flight --