Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Heise, Idaho 83443
Monday, July 4, 2011 13:01 MDT
NTSB Narrative Summary Released at Completion of Accident
Over the 7 months preceding the accident, the owner had conducted extensive work on the experimental light sport airplane, including the installation of new sails (fabric wing covers). The accident flight was a test flight following this work. Before the flight, the owner and the pilot completed a preflight inspection, an engine run-up, and a complete check of the control surfaces, with no anomalies noted. The owner, who remained on the ground and witnessed the accident, reported that, after taking off and climbing to 150 feet above ground level, the pilot made a 180-degree turn. The airplane was in a shallow climb at an altitude of about 100 feet above ground level when it appeared to stall. The left wing dropped, and the airplane descended in a steep left bank to ground impact. The owner ran to the airplane, and, while awaiting emergency responders, he spoke to the pilot, who said "I had no ailerons." The pilot's report of a loss of aileron control is consistent with the degradation of roll control authority during an aerodynamic stall. According to the owner, the pilot did not have any previous flight experience in the accident airplane make and model.
NTSB Probable Cause Narrative
The pilot's failure to maintain adequate airspeed while maneuvering, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's lack of experience in the accident airplane make and model.
Event Information
| Type of Event | Accident |
| Event Date | 7/4/2011 |
| Event Day of the Week | Monday |
| Time of Event | 1301 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Heise |
| Event State | IDAHO |
| Event Country | -- |
| Zipcode of the event site | 83443 |
| Event Date Year | 2011 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 433801N |
| Event Location Longitude | 1114056W |
| 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 | 5011 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1253 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 245 |
| Weather Observation Facility ID | IDA |
| Elevation of weather observation facility | 4744 |
| Distance of event from weather observation facility (units?) | 19 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 8000 |
| 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) | 27 |
| Dew Point at event time (in degress fahrenheit) | 8 |
| Wind Direction (degrees magnetic) | 180 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.1 |
| Density Altitude (feet) | -- |
| 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 | -- |
| Injury Total Serious | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30411 |
| NTSB Notification Source | FAA ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Oct 29 2012 2:54PM |
| User who most recently changed record | snyg |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N648MA |
| NTSB Number | WPR11LA324 |
| 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 | M Squared |
| Aircraft Model | Sprint 1000 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 7771600M-2005 |
| Certified Max Gross Weight | 1320 |
| 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 | Conditional |
| Date of Last Inspection | Dec 8 2007 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 810 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | Clark B. Millet |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Rigby |
| Aircraft Owner State | ID |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 83442 |
| Operator is an individual? | No |
| Operator Name | Clark B. Millet |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Rigby |
| Operator State | ID |
| Operator Country | USA |
| Operator Zip code | 83442 |
| 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 | Heise |
| Departure State | ID |
| Departure Country | USA |
| Departure Time | 1300 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | -- |
| Destination City | Heise |
| Destination State | ID |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Aug 7 2012 6:06PM |
| User who most recently changed record | coos |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |