Individually Owned: 150,657
Corporate Owned: 137,281
Bert Mooney Airport
Aircraft Accident/Incident Report
Butte, Montana 59701
Wednesday, August 2, 2000 10:20 MDT
NTSB Narrative Summary Released at Completion of Accident
Witnesses reported that they observed the airplane begin its takeoff roll on runway 33 from taxiway E. They stated that after becoming airborne, the airplane got about 50 to 60 feet in the air, then made a sharp right turn. The witnesses stated that the airplane '[took] a nosedive' or 'nosed into the ground' when it made this sharp right turn. The aircraft impacted the ground and came to rest just east of the intersection of runways 15/33 and 11/29. A post-crash fire ensued; however, the aircraft occupants were moved to safety by responding emergency personnel. The pilot reported to the NTSB that he had little recollection of the accident sequence. Investigators did not determine the reason for the sharp right turn and nose drop to ground impact observed by the witnesses. A report by the responding FAA inspector stated that the aircraft's engine was producing power at impact.
NTSB Probable Cause Narrative
A loss of aircraft control for undetermined reasons.
Event Information
| Type of Event | Accident |
| Event Date | 8/2/2000 |
| Event Day of the Week | Wednesday |
| Time of Event | 1020 |
| Event Time Zone | Mountain Daylight Time |
| Event City | BUTTE |
| Event State | MONTANA |
| Event Country | -- |
| Zipcode of the event site | 59701 |
| Event Date Year | 2000 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | BERT MOONEY |
| Event Location Nearest Airport ID | BTM |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 5545 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Witness |
| 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 | 10000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 25 |
| Air Temperature at event time (in degrees celsius) | 26 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | 8000 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 2 |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1005 |
| NTSB Notification Source | FAA/Helena FSDO |
| NTSB Notification Date | Aug 2 2000 12:00AM |
| NTSB Notification Time | 1145 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jul 2 2001 3:00PM |
| User who most recently changed record | MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N4350K |
| NTSB Number | SEA00LA151 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Kokenge |
| Aircraft Model | GLASTAR |
| Aircraft Series Identifier | GLASTAR |
| Aircraft Serial Number | 5006 |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Unknown |
| Date of Last Inspection | Jun 8 2000 12:00AM |
| Airframe hours since last inspection | 59 |
| Airframe Hours | 106 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | ROY F. KOKENGE |
| Aircraft Owner Street Address | 819 N. 53RD AVE. |
| Aircraft Owner City | YAKIMA |
| Aircraft Owner State | WA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 98908 |
| 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 | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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 | BTM |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1020 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | YKM |
| Destination City | YAKIMA |
| Destination State | WA |
| Destination Country | |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 2 2001 4:09AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 33 |
| Runway Length | 9000 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |