Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Lake Isabella, California 93240
Saturday, January 9, 2010 13:08 PST
NTSB Narrative Summary Released at Completion of Accident
Witnesses reported the pilot appeared to be performing aerobatic maneuvers and attempting to perform loops, as the airplane made numerous nose-high and nose-low maneuvers. Estimates of the airplane's altitude varied between 300 and 500 feet above ground level. The witnesses stated that the airplane was in level flight when the nose pointed down steeply 45-90 degrees, and then started to transition up. Just after the nose went above the horizon, the right wing folded upward. The engine then lost power and the airplane entered into a free fall. A post accident examination of the wreckage revealed that the fracture surface of the wing spar were consistent with overload forces being applied to the airframe. The pilot did not hold a pilot or medical certificate. Post-mortem toxicology testing on the pilot was consistent with use of methamphetamine, marijuana, and diazepam, but there was no urine or blood available for testing; therefore, it was not possible to estimate the last time when the substances might have been used or whether the pilot may have been impaired by that use. The operating limitations for the airplane noted that it was prohibited from aerobatic flight.
NTSB Probable Cause Narrative
The pilot’s performance of prohibited aerobatic flight maneuvers that exceeded the structural limits of the airplane, resulting in an in-flight breakup.
Event Information
| Type of Event | Accident |
| Event Date | 1/9/2010 |
| Event Day of the Week | Saturday |
| Time of Event | 1308 |
| Event Time Zone | Pacific Standard Time |
| Event City | Lake Isabella |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 93240 |
| Event Date Year | 2010 |
| Event Date Month | 1 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 364754N |
| Event Location Longitude | 1194430W |
| 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 | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1256 Pacific Standard Time |
| Direction of event from weather observation facility (degrees) | 60 |
| Weather Observation Facility ID | KNID |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | 38 |
| Time Zone of the weather observation | PST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 8500 |
| Sky/Lowest/Cloud Conditions | Few |
| 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) | 1 |
| Dew Point at event time (in degress fahrenheit) | -5 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | -- |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.27 |
| 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 | 2 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 27844 |
| NTSB Notification Source | NTSB Comm Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Dec 2 2010 1:38PM |
| User who most recently changed record | coos |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N155TD |
| NTSB Number | WPR10LA104 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | AIRBORNE |
| Aircraft Model | Streak 2 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | ST261 |
| Certified Max Gross Weight | -- |
| Aircraft Category | -- |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| 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 | -- |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Unknown |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | Donald Wright |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Lake Isabella |
| Aircraft Owner State | CA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 98264 |
| Operator is an individual? | No |
| Operator Name | Donald Wright |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Lake Isabella |
| Operator State | CA |
| Operator Country | USA |
| Operator Zip code | 98264 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| 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 | -- |
| Departure City | Lake Isabella |
| Departure State | CA |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | PST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | -- |
| Destination City | Lake Isabella |
| Destination State | CA |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Dec 2 2010 1:38PM |
| User who most recently changed record | coos |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |