Yellowstone Regional Airport
Aircraft Accident/Incident Report

Cody, Wyoming 82414
Saturday, June 7, 2003 15:30 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported, "A few seconds after becoming airborne, oil began splashing onto the windscreen and boiling out of the cowling around the oil cap access door." The pilot decided to land immediately. The pilot said he maintained runway heading to gain some altitude, approximately 300 to 400 feet above ground level (agl). He said he flew beyond the departure end of the runway and then made a 180-degree turn back to the airport. The pilot said he lowered flaps and began his descent. At approximately 150 feet agl, the pilot said he encountered "a severe downdraft, which caused the airplane to sink at a rapid rate. Although I immediately added full power, I was unable to overcome the downdraft." The airplane impacted terrain off the departure end of the runway causing substantial damage to the wings, fuselage, undercarriage, and vertical stabilizer. An examination of the airplane showed the oil cap off and the dip stick out. The examination also showed oil streaks around the oil filler door, across the top of the engine cowling, and on the inside of the engine cowling. The weather conditions approximately 5 minutes after the accident were clear skies, 10 miles visibility, and winds at 130 degrees magnetic at 5 knots.

NTSB Probable Cause Narrative

the pilot's improper preflight planning and his failure to maintain aircraft control when returning to the airport. Factors contributing to the accident were the oil leak, the attempted precautionary landing, and the downdraft.

Event Information

Type of Event Accident
Event Date 6/7/2003
Event Day of the Week Saturday
Time of Event 1530
Event Time Zone Mountain Daylight Time
Event City Cody
Event State WYOMING
Event Country --
Zipcode of the event site 82414
Event Date Year 2003
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 443113N
Event Location Longitude 1090126W
Event Location Airport Yellowstone Regional Airport
Event Location Nearest Airport ID COD
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0.7
Degrees magnetic from airport 40
Airport Elevation 5102
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1555 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 220
Weather Observation Facility ID COD
Elevation of weather observation facility 5102
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 130
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) 30.08
Density Altitude (feet) 6274
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 2
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 14243
NTSB Notification Source FAA COMM CTR
NTSB Notification Date Jun 7 2003 12:00AM
NTSB Notification Time 1620
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Nov 25 2003 11:36AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Casper, Wyoming FSFO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4035K
NTSB Number DEN03LA098
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 Helio
Aircraft Model H800
Aircraft Series Identifier --
Aircraft Serial Number H-6
Certified Max Gross Weight 4000
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 May 1 2003 12:00AM
Airframe hours since last inspection 20
Airframe Hours 918
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Schmidt Aviation, Inc.
Aircraft Owner Street Address P. O. Box 189
Aircraft Owner City Boring
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97009
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code COD
Departure City Cody
Departure State WY
Departure Country USA
Departure Time 1530
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code --
Destination City Soldier's Bar
Destination State ID
Destination Country USA
Specific Phase of Flight Takeoff - initial climb
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Aug 21 2003 12:20PM
User who most recently changed record MCBM
Since inspection or accident Time of Accident
Event Location Runway Number and Location 04
Runway Length 8276
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --