Griffin Field Airport
Aircraft Accident/Incident Report

Walsh, Colorado 81090
Saturday, May 10, 1986 15:00 MDT

NTSB Narrative Summary Released at Completion of Accident

THE PLT REPORTS THAT HE WAS LANDING TO THE SOUTH ON THE TURF RWY WITH CALM WINDS WHEN THE ACCIDENT OCCURRED. HE SAID THE LANDING WAS NORMAL UNTIL THE ACFT SLOWED TO 40 TO 50 MPH AT WHICH TIME A WHIRLWIND WAS ENCOUNTERED WHICH LIFTED THE RIGHT WING. THE LEFT WING CONTACTED THE GROUND AND THE ACFT NOSED OVER. THE PLT ALSO STATED THAT HE MAY HAVE APPLIED THE BRAKES WHEN THE LEFT WING HIT THE GROUND.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/10/1986
Event Day of the Week Saturday
Time of Event 1500
Event Time Zone Mountain Daylight Time
Event City WALSH
Event State COLORADO
Event Country --
Zipcode of the event site 81090
Event Date Year 1986
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport GRIFFIN FIELD
Event Location Nearest Airport ID 0K0
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 3964
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 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) -7
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 6200
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 314
NTSB Notification Source --
NTSB Notification Date May 12 1986 12:00AM
NTSB Notification Time 1430
Fiche Number and/or location -used to find docket information 30613
Date of most recent change to record Jan 2 2001 9:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8812T
NTSB Number DEN86LA133
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Eagle Aircraft Co.
Aircraft Model DW-1
Aircraft Series Identifier DW-1
Aircraft Serial Number 0076-82
Certified Max Gross Weight 5400
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 30 1986 12:00AM
Airframe hours since last inspection 20
Airframe Hours 709
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name OGLE COGBURN
Aircraft Owner Street Address BOX 127
Aircraft Owner City WALSH
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 81090
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 Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Agriculture
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1415
Departure Time Zone MDT
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 Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 17
Runway Length 3200
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --