Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Henefer, Utah 84033
Monday, July 30, 2001 12:42 MDT
NTSB Narrative Summary Released at Completion of Accident
The pilot of the amateur-built experimental airplane was receiving VFR flight following services when radio and radar contact were lost. The airplane impacted mountainous terrain in a vertical attitude. There was no evidence of airframe, powerplant, propeller, or flight control malfunction/failure. Autopsy was inconclusive and toxicology was not possible. The pilot's son-in-law said that approximately 1 week before the accident, the pilot had complained of shortness of breath.
NTSB Probable Cause Narrative
the pilot's failure to maintain aircraft control for an undetermined reason.
Event Information
| Type of Event | Accident |
| Event Date | 7/30/2001 |
| Event Day of the Week | Monday |
| Time of Event | 1242 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Henefer |
| Event State | UTAH |
| Event Country | -- |
| Zipcode of the event site | 84033 |
| Event Date Year | 2001 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 410143N |
| Event Location Longitude | 1112313W |
| 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 | 1256 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | SLC |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 18000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| 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) | 33 |
| Dew Point at event time (in degress fahrenheit) | 8 |
| Wind Direction (degrees magnetic) | 360 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 18 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 21 |
| Altimeter Setting at event time (in. Hg) | 29.81 |
| 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 | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 12041 |
| NTSB Notification Source | FAA NW OPERATIONS CENTER |
| NTSB Notification Date | Jul 30 2001 12:00AM |
| NTSB Notification Time | 2138 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jul 25 2002 9:28AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Salt Lake City, Utah |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N533WW |
| NTSB Number | DEN01FA133 |
| 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 | Wilson |
| Aircraft Model | Glastar |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 5278 |
| Certified Max Gross Weight | 1960 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | Yes |
| 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 | Conditional |
| Date of Last Inspection | Dec 13 2000 12:00AM |
| Airframe hours since last inspection | 87 |
| Airframe Hours | 87 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | William G. Wilson |
| Aircraft Owner Street Address | 13281 Bitney Springs Rd. |
| Aircraft Owner City | Nevada City |
| Aircraft Owner State | -- |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 95959 |
| 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 | RKS |
| Departure City | Rock Springs |
| Departure State | WY |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | ENV |
| Destination City | Wendover |
| Destination State | UT |
| Destination Country | USA |
| Specific Phase of Flight | Descent - uncontrolled |
| Report sent to ICAO? | No |
| Evacuation occurred | -- |
| Date of most recent change to record | May 15 2002 11:55AM |
| User who most recently changed record | MCBM |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |