Aircraft Accident/Incident Report

Worland, Wyoming 82401
Saturday, December 6, 1997 11:20 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot landed on a dirt road, picked up his passenger, and took off again to look for stray livestock. Spotting three head of cattle, the pilot reduced power and initiated a shallow descending turn. When he attempte to reapplied power, the engine did not respond. After several attempts to restore engine power, the pilot was forced to land in a dry creek bed. The landing gear was sheared off during the forced landing. Examination of the airplane revealed no contaminants in the fuel, and no obstructions in the fuel vent. Fuel, air, and ignition system continuity were established.

NTSB Probable Cause Narrative

loss of engine power for undetermined reason(s). A related factor was the rough and uneven terrain on which the forced landing was made.

Event Information

Type of Event Accident
Event Date 12/6/1997
Event Day of the Week Saturday
Time of Event 1120
Event Time Zone Mountain Standard Time
Event City WORLAND
Event State WYOMING
Event Country --
Zipcode of the event site 82401
Event Date Year 1997
Event Date Month 12
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 Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1150 Mountain Standard Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID WRL
Elevation of weather observation facility 4227
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 22000
Lowest Non-Ceiling Height 14000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 60
Air Temperature at event time (in degrees celsius) 9
Dew Point at event time (in degress fahrenheit) -13
Wind Direction (degrees magnetic) 30
Variable Wind Indicator Unknown
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 4556
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 978
NTSB Notification Source --
NTSB Notification Date Dec 6 1997 12:00AM
NTSB Notification Time 1356
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:42PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N71AT
NTSB Number FTW98LA065
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 Artic Aircraft Corp.
Aircraft Model S-1B2
Aircraft Series Identifier S-1B2
Aircraft Serial Number 1022
Certified Max Gross Weight 1650
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 Annual
Date of Last Inspection Nov 20 1997 12:00AM
Airframe hours since last inspection 26
Airframe Hours 3540
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SKY AVIATION CORP.
Aircraft Owner Street Address P.O. BOX 51
Aircraft Owner City WORLAND
Aircraft Owner State WY
Aircraft Owner Country
Aircraft Owner Zipcode 82401
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 BZHA
Owner has at least one certificate Yes - certificate holder
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) Aerial Observation
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code NONE
Departure City TEN SLEEP
Departure State WY
Departure Country
Departure Time 930
Departure Time Zone MST
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 Emergency landing
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 --