Aircraft Accident/Incident Report

Pittsville, Wisconsin 54466
Wednesday, April 8, 2009 14:39 CDT

NTSB Narrative Summary Released at Completion of Accident

The public-use airplane was being operated as a single-pilot aerial observation aircraft when it was responding to a ground fire. The fire originated from a garbage fire at a house that was adjacent to a wooded area. The wooded area was at the northern edge of a fallow agricultural field that the airplane was seen initially flying over on a southerly heading at an altitude of about 100 feet above the trees. The airplane then turned towards a northerly heading and descended to an altitude of about 35 feet above the field. The airplane engine noise then increased which was then followed by a wing drop consistent with an aerodynamic stall as it approached the tree line. Examination of the wreckage revealed no anomalies that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot's failure to maintain adequate airspeed which resulted in an aerodynamic stall at a low altitude.

Event Information

Type of Event Accident
Event Date 4/8/2009
Event Day of the Week Wednesday
Time of Event 1439
Event Time Zone Central Daylight Time
Event City Pittsville
Event State WISCONSIN
Event Country --
Zipcode of the event site 54466
Event Date Year 2009
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
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 1354 Central Daylight Time
Direction of event from weather observation facility (degrees) 110
Weather Observation Facility ID ISW
Elevation of weather observation facility 1021
Distance of event from weather observation facility (units?) 23
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) 10
Dew Point at event time (in degress fahrenheit) -12
Wind Direction (degrees magnetic) 310
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 12
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 20
Altimeter Setting at event time (in. Hg) 29.66
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 26734
NTSB Notification Source FAA-AGL-ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Apr 16 2010 3:24PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2489S
NTSB Number CEN09GA242
Missing Aircraft Indicator --
Federal Aviation Reg. Part Public Use
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage None
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 337
Aircraft Series Identifier C
Aircraft Serial Number 337-0789
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 15 2008 12:00AM
Airframe hours since last inspection --
Airframe Hours 2530
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name State of Wisconsin/DOA
Aircraft Owner Street Address 3400 Miller St
Aircraft Owner City Madison
Aircraft Owner State WI
Aircraft Owner Country USA
Aircraft Owner Zipcode 53704
Operator is an individual? No
Operator Name State of Wisconsin/DNR
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City --
Operator State --
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) Fire Fighting
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code DAF
Departure City Necedah
Departure State WI
Departure Country USA
Departure Time 1411
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code --
Destination City Pittsville
Destination State WI
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 23 2010 11:19AM
User who most recently changed record galm
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --