Sparta/Fort Mccoy Airport
Aircraft Accident/Incident Report

Sparta, Wisconsin 54656
Friday, October 6, 2000 19:20 CDT

NTSB Narrative Summary Released at Completion of Accident

The airplane impacted a tree and terrain following a total nonmechanical loss of engine power. The pilot reported that with the fuel tanks half full there would be 20 gallons of fuel. The pilot calculated that there would be 4 gallons of reserve fuel remaining following a 2-hour flight at a fuel burn of 8 gallons per hour. The airplane was equipped with two main fuel tanks which had a total fuel capacity of 42 gallons, of which 38 gallons were unusable. Federal Aviation Administration publication, FAA-P-8740-03 states that a "safe flight time" is based upon multiplying the usable fuel on board by 75% and dividing that result by the previously confirmed consumption rate. Also, fuel gauges must be calibrated to accurately indicate an empty tank and do not have to be accurate at any other fuel level. The publication also states that the performance and fuel information in the pilot operating handbook is based upon the testing of new aircraft with experienced test pilots. During approach to the airport, the pilot changed his planned landing runway so as to land with a more favorable wind; the engine quit on the base leg of the newly selected runway. The wind at the time of the accident was 360 degrees at 7 knots. Advisory Circular 61-21A, states, "When a forced landing is imminent, wind direction and speed should always be considered, but the main object is to complete a safe landing in the largest and best field available. No evidence of fuel was found aboard the airplane.

NTSB Probable Cause Narrative

the pilot's inaccurate fuel consumption calculations, improper fuel management, inadequate in-flight planning/decision, flight to destination alternate not performed, and the discontinued planned approach to the initially selected runway. Contributing factors were the fuel system not understood by the pilot. The tree was additional factor.

Event Information

Type of Event Accident
Event Date 10/6/2000
Event Day of the Week Friday
Time of Event 1920
Event Time Zone Central Daylight Time
Event City SPARTA
Event State WISCONSIN
Event Country --
Zipcode of the event site 54656
Event Date Year 2000
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport SPARTA/FORT MCCOY
Event Location Nearest Airport ID CMY
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 180
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1853 Central Daylight Time
Direction of event from weather observation facility (degrees) 250
Weather Observation Facility ID LSE
Elevation of weather observation facility 654
Distance of event from weather observation facility (units?) 23
Time Zone of the weather observation CDT
Lighting Conditions Night/Dark
Lowest Ceiling Height 8500
Lowest Non-Ceiling Height 5500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 39
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 320
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) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 10787
NTSB Notification Source FAA
NTSB Notification Date Oct 6 2000 12:00AM
NTSB Notification Time 2118
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Oct 23 2001 10:32AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N13214
NTSB Number CHI01LA004
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 172M
Aircraft Series Identifier 172M
Aircraft Serial Number 17262579
Certified Max Gross Weight 2300
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name B D MYHRE INCORPORATED
Aircraft Owner Street Address RR 2 BOX 10
Aircraft Owner City HIXTON
Aircraft Owner State WI
Aircraft Owner Country
Aircraft Owner Zipcode 54635
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 06C
Departure City SCHAUMBURG
Departure State IL
Departure Country
Departure Time 1725
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code BCK
Destination City BLACK RIVER FAL
Destination State WI
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 4 2001 4:45AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --