Individually Owned: 150,657
Corporate Owned: 137,281
Chino Airport
Aircraft Accident/Incident Report
Chino, California 91710
Friday, May 25, 2007 13:25 PDT
NTSB Narrative Summary Released at Completion of Accident
The recently constructed amateur-built experimental airplane was in its initial flight test phase and was in the traffic pattern at the airport. Witnesses said it stalled and collided with terrain in a nose down attitude. The airplane had accumulated approximately 8 hours total flight time. An individual who was assisting the pilot with the certification of the airplane reported that it was about 100 pounds heavier than the original design specified due to intentional modifications that were made during construction. Most of the additional weight was located in the tail section. On the day of the accident, the pilot had loaded into the front seat numerous heavy items in an attempt to move the CG forward. The items included a metal workbench vise, a metal toolbox, and a large box of construction staples. Examination of the airplane and engine revealed no abnormalities, which would have precluded normal operation. The person assisting with certification stated that the original concept airframe was built in Korea and consisted of a metal frame covered with cloth. The pilot had the accident airplane built in China but with the metal frame covered in hand laid fiberglass.
NTSB Probable Cause Narrative
The pilot's failure to maintain an adequate airspeed that resulted in an inadvertent stall.
Event Information
| Type of Event | Accident |
| Event Date | 5/25/2007 |
| Event Day of the Week | Friday |
| Time of Event | 1325 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Chino |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 91710 |
| Event Date Year | 2007 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 335834N |
| Event Location Longitude | 1173817W |
| Event Location Airport | CHINO |
| Event Location Nearest Airport ID | CNO |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0.5 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 650 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1353 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 360 |
| Weather Observation Facility ID | CNO |
| Elevation of weather observation facility | 650 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | PDT |
| 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) | 5 |
| Air Temperature at event time (in degrees celsius) | 27 |
| Dew Point at event time (in degress fahrenheit) | 10 |
| Wind Direction (degrees magnetic) | 250 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 13 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 21 |
| Altimeter Setting at event time (in. Hg) | 29.9 |
| 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) | 24321 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | May 25 2007 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Sep 26 2008 6:40PM |
| User who most recently changed record | NTSB\lema |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | WP-FSDO Riverside, CA |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N51291 |
| NTSB Number | LAX07LA175 |
| 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 | -- |
| Aircraft Explosion | -- |
| Aircraft Manufacturer's Full Name | Skygear |
| Aircraft Model | Skygear |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | SKG-9003010606 |
| Certified Max Gross Weight | 1100 |
| Aircraft Category | Airplane |
| 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 | Continuous Airworthiness |
| Date of Last Inspection | May 1 2007 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 8 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Helen Park |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | La Habra |
| Aircraft Owner State | CA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 90631 |
| 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) | Flight Test |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | CNO |
| Departure City | Chino |
| Departure State | CA |
| Departure Country | USA |
| Departure Time | 1320 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | -- |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | Approach - VFR pattern - downwind |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Sep 10 2008 5:53PM |
| User who most recently changed record | COOS |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 26R |
| Runway Length | 4858 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |