Aircraft Accident/Incident Report

Wilbur, Washington 99185
Tuesady, May 22, 2001

NTSB Narrative Summary Released at Completion of Accident

The reported purpose of the flight was to survey the farm's fields, with the pilot (one of the owners of the farm and the aircraft) and a farm worker aboard. The passenger reported that the pilot fueled the aircraft before departure. He stated that he and the pilot took off and flew the fields northwest of the farm, flying over the fields starting in the north and progressively working their way south. The passenger stated that after they looked at all the fields, they then turned toward the Wilbur airport, and that that was the last thing he remembered. The crash site was approximately midway between the Sheffels Ranch private airstrip (approximately 5 nautical miles north-northwest of the Wilbur airport) and the Wilbur airport. No other witnesses to the accident were identified. Visual meteorological conditions with light to calm winds were reported at the nearest weather observation stations during the accident time frame, which was around local sunset. Post-accident examinations of the aircraft wreckage were indicative of a relatively low-speed, right-wing-first impact with the terrain, but did not reveal any evidence of mechanical or structural problems with the aircraft or engine. An autopsy and toxicological tests did not reveal any significant underlying disease or impairing substances in the pilot.

NTSB Probable Cause Narrative

A collision with terrain for undetermined reasons.

Event Information

Type of Event Accident
Event Date 5/22/2001
Event Day of the Week Tuesday
Time of Event --
Event Time Zone --
Event City Wilbur
Event State WASHINGTON
Event Country --
Zipcode of the event site 99185
Event Date Year 2001
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 474730N
Event Location Longitude 1184600W
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 1950 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 208
Weather Observation Facility ID EPH
Elevation of weather observation facility 1276
Distance of event from weather observation facility (units?) 42
Time Zone of the weather observation PDT
Lighting Conditions --
Lowest Ceiling Height --
Lowest Non-Ceiling Height 25000
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 30
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.93
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 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 11540
NTSB Notification Source FAA ROC
NTSB Notification Date May 23 2001 12:00AM
NTSB Notification Time 221
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 20 2002 1:46PM
User who most recently changed record NTSB\MONR
Basic weather conditions --
FAA District Office Spokane, WA

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7155K
NTSB Number SEA01LA102
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-18-105 Special
Aircraft Series Identifier --
Aircraft Serial Number 18-375
Certified Max Gross Weight 1500
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 May 22 2000 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Sheffels L and Son
Aircraft Owner Street Address 8505 Douglas Rd. E.
Aircraft Owner City Wilbur
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode 99185
Operator is an individual? No
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? --
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) Aerial Observation
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code --
Departure City Wilbur
Departure State WA
Departure Country USA
Departure Time 2015
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code 2S8
Destination City Wilbur
Destination State WA
Destination Country USA
Specific Phase of Flight Unknown
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Jan 19 2002 1:55PM
User who most recently changed record STAM
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --