Individually Owned: 150,657
Corporate Owned: 137,281
Clayton County Airport
Aircraft Accident/Incident Report
Hampton, Georgia 30228
Tuesady, March 8, 2011 11:40 EST
NTSB Narrative Summary Released at Completion of Accident
The airplane had not been flown for about 5 months and the purpose of the accident flight was a maintenance test flight after both engines had been replaced with higher horsepower models. Witnesses observed the airplane depart and complete two uneventful touch-and-go landings. The airplane was then observed to be struggling to gain altitude and airspeed while maneuvering in the traffic pattern. One witness, who was an aircraft mechanic, reported that he observed the airplane yawing to the left and heard noises associated with propeller pitch changes, which he believed were consistent with the "Beta" range. The airplane stalled and impacted trees in a wooded marsh area, about 1 mile from the airport. It came to rest about 80-degrees vertically. Examination of the wreckage did not reveal any preimpact malfunctions; however, the lack of flight recorders and the condition of the wreckage precluded the gathering of additional relevant information. Damage observed to both engines and both propellers revealed they were likely operating at symmetrical power settings and blade angles at the time of the impact, with any differences in scoring signatures likely the result of impact damage. The reason for the yawing and the noise associated with propeller pitch changes that were reported prior to the stall could not be determined.
NTSB Probable Cause Narrative
The pilot did not maintain airspeed while maneuvering, which resulted in an aerodynamic stall.
Event Information
| Type of Event | Accident |
| Event Date | 3/8/2011 |
| Event Day of the Week | Tuesday |
| Time of Event | 1140 |
| Event Time Zone | Eastern Standard Time |
| Event City | Hampton |
| Event State | GEORGIA |
| Event Country | -- |
| Zipcode of the event site | 30228 |
| Event Date Year | 2011 |
| Event Date Month | 3 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 332245N |
| Event Location Longitude | 0842102W |
| Event Location Airport | Clayton County |
| Event Location Nearest Airport ID | 4A7 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 874 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1153 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 260 |
| Weather Observation Facility ID | FFC |
| Elevation of weather observation facility | 808 |
| Distance of event from weather observation facility (units?) | 10 |
| Time Zone of the weather observation | EST |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 14 |
| Dew Point at event time (in degress fahrenheit) | 2 |
| Wind Direction (degrees magnetic) | 100 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 21 |
| Altimeter Setting at event time (in. Hg) | 30.28 |
| 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) | 29891 |
| NTSB Notification Source | FAA Southern ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Jun 19 2012 2:11PM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N157KM |
| NTSB Number | ERA11FA183 |
| 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 | DEHAVILLAND |
| Aircraft Model | DHC-6-100 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 057 |
| Certified Max Gross Weight | 11579 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 1 |
| Cabin Crew Seats | -- |
| Passenger Seats | 23 |
| Total number of seats on the aircraft | -- |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Jul 30 2010 12:00AM |
| Airframe hours since last inspection | 54 |
| Airframe Hours | 16541 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | Desert Sand Aircraft Leasing Company Inc. |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Carson City |
| Aircraft Owner State | NV |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 89701 |
| Operator is an individual? | No |
| Operator Name | Desert Sand Aircraft Leasing Company Inc. |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Carson City |
| Operator State | NV |
| Operator Country | USA |
| Operator Zip code | 89701 |
| 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) | Flight Test |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | 4A7 |
| Departure City | Hampton |
| Departure State | GA |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | EST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | 4A7 |
| Destination City | Hampton |
| Destination State | GA |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | May 15 2012 11:42AM |
| User who most recently changed record | kenj |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 06 |
| Runway Length | 4503 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |