Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Worland, Wyoming 82401
Saturday, July 13, 2002 9:30 MDT
NTSB Narrative Summary Released at Completion of Accident
The pilot said he was crossing a mountain range approximately 800 feet above each series of mountains. A downdraft caused the airplane to lose both altitude and airspeed. Rising terrain prevented him from completing a 180-degree turn and the airplane struck a tree then impacted the ground.
NTSB Probable Cause Narrative
the pilot's selection of an inadequate altitude for crossing mountainous terrain, resulting in a collision with trees. A contributing factor was the downdraft.
Event Information
| Type of Event | Accident |
| Event Date | 7/13/2002 |
| Event Day of the Week | Saturday |
| Time of Event | 930 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Worland |
| Event State | WYOMING |
| Event Country | -- |
| Zipcode of the event site | 82401 |
| Event Date Year | 2002 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 441215N |
| Event Location Longitude | 1071600W |
| 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 | 853 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 225 |
| Weather Observation Facility ID | WRL |
| Elevation of weather observation facility | 4227 |
| Distance of event from weather observation facility (units?) | 52 |
| 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) | 23 |
| Dew Point at event time (in degress fahrenheit) | 8 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.06 |
| Density Altitude (feet) | 5931 |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 12517 |
| NTSB Notification Source | FAA COMM CTR |
| NTSB Notification Date | Jul 13 2002 12:00AM |
| NTSB Notification Time | 1800 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Dec 6 2002 3:26PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Casper, Wyoming |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N28717 |
| NTSB Number | DEN02LA075 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Destroyed |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | American General Aircraft |
| Aircraft Model | AA5B |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | AA5B-0771 |
| Certified Max Gross Weight | 2400 |
| 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 | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Gregg S. Wilson |
| Aircraft Owner Street Address | On File |
| Aircraft Owner City | Batavia |
| Aircraft Owner State | OH |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 45103 |
| 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 | No |
| Departure Airport Code | COD |
| Departure City | Cody |
| Departure State | WY |
| Departure Country | USA |
| Departure Time | 840 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | VTN |
| Destination City | Valentine |
| Destination State | NE |
| Destination Country | USA |
| Specific Phase of Flight | Maneuvering - turn to reverse direction |
| Report sent to ICAO? | No |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 29 2002 10:55AM |
| User who most recently changed record | MCBM |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |