Aircraft Accident/Incident Report

Whitewood, South Dakota 57793
Saturday, March 28, 1998 12:25 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot reported he was flying between cloud layers at 7,500 feet msl, when the airplane started to accumulate airframe ice. He reversed his direction to return to Spear Fish, South Dakota, but the weather continued to deteriorate. He decided to make an off-airport landing in a field. The pilot reported that he circled the field two times. On the third pass, while on final approach, the airplane contacted the lower line of a dual set of wires. The airplane then nosed down and impacted the terrain prior to nosing over inverted.

NTSB Probable Cause Narrative

failure of the pilot to maintain clearance from obstructions (wires) during an approach for a precautionary landing. Factors associated with the accident were: the pilot's inadequate evaluation of the weather conditions, low ceilings, icing conditions, and the wires which were contacted.

Event Information

Type of Event Accident
Event Date 3/28/1998
Event Day of the Week Saturday
Time of Event 1225
Event Time Zone Mountain Standard Time
Event City WHITEWOOD
Event State SOUTH DAKOTA
Event Country --
Zipcode of the event site 57793
Event Date Year 1998
Event Date Month 3
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 Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
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 800
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 5
Air Temperature at event time (in degrees celsius) 2
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 45
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 15
Altimeter Setting at event time (in. Hg) 29
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) 99
NTSB Notification Source --
NTSB Notification Date Mar 28 1997 12:00AM
NTSB Notification Time 1830
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 10:53AM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9140C
NTSB Number CHI98LA109
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 Cessna
Aircraft Model 180
Aircraft Series Identifier 180
Aircraft Serial Number 31-239
Certified Max Gross Weight 2550
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 Mar 3 1998 12:00AM
Airframe hours since last inspection 16
Airframe Hours 5035
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SPEAR FISH AVIATION
Aircraft Owner Street Address 120 UNION ST.
Aircraft Owner City SPEAR FISH
Aircraft Owner State SD
Aircraft Owner Country
Aircraft Owner Zipcode 57783
Operator is an individual? --
Operator Name JOHN J. COSSETTE
Operator Same as Owner? No
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 SPF
Departure City SPEAR FISH
Departure State SD
Departure Country
Departure Time 1155
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code Y49
Destination City WALKER
Destination State MN
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --