Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Mosquero, New Mexico 87733
Wednesday, August 15, 2007 9:53 MDT
NTSB Narrative Summary Released at Completion of Accident
According to GPS data the airplane was making a 360 degree turn to the left at an altitude of 350 feet agl. GPS altitude data depicted an immediate descent at a rate of 2,200 to 3,300 feet per minute, at a ground speed of 59 miles per hour. Examination of the wreckage revealed impact damage signatures on the fuselage, engine cowling, and wings consistent with a stall. No evidence of preimpact mechanical anomalies was discovered. The investigation revealed discrepancies between the airspeed indicator and the airspeed guidance provided in the airplane flight manual. In addition, rate of climb data and the effects of nonstandard atmospheric pressure and nonstandard temperature on performance were not presented in the flight manual. This additional information is not specified by the current ASTM consensus standards. Density altitude, at the accident site, was between 7,450 and 8,360 feet.
NTSB Probable Cause Narrative
The pilot's failure to maintain airspeed while maneuvering, resulting in an aerodynamic stall. Contributing to the accident was the conflicting airspeed information provided by the manufacturer, the incorrect airspeed indicator markings, and the high density altitude.
Event Information
| Type of Event | Accident |
| Event Date | 8/15/2007 |
| Event Day of the Week | Wednesday |
| Time of Event | 953 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Mosquero |
| Event State | NEW MEXICO |
| Event Country | -- |
| Zipcode of the event site | 87733 |
| Event Date Year | 2007 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 354605N |
| Event Location Longitude | 1035903W |
| 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 | 953 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 143 |
| Weather Observation Facility ID | TCC |
| Elevation of weather observation facility | 4065 |
| Distance of event from weather observation facility (units?) | 46 |
| Time Zone of the weather observation | MDT |
| 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) | 31 |
| Dew Point at event time (in degress fahrenheit) | 11 |
| Wind Direction (degrees magnetic) | 220 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 16 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 24 |
| Altimeter Setting at event time (in. Hg) | 30.07 |
| 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) | 23400 |
| NTSB Notification Source | FAA-Southwest Region |
| NTSB Notification Date | Aug 15 2007 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Apr 30 2008 1:28PM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Albuquerque FAA Flight Standards District Office |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N808GS |
| NTSB Number | DEN07FA136 |
| Missing Aircraft Indicator | Y |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Zlin Aviation s.r.o. |
| Aircraft Model | Savage |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 0073 |
| Certified Max Gross Weight | 1235 |
| 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 | -- |
| Date of Last Inspection | Jul 1 2007 12:00AM |
| Airframe hours since last inspection | 32.4 |
| Airframe Hours | 60.5 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Glen Sullivan |
| Aircraft Owner Street Address | On File |
| Aircraft Owner City | Fredericksburg |
| Aircraft Owner State | VA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 22408 |
| Operator is an individual? | Yes |
| Operator Name | On File |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | On File |
| Operator City | Solano |
| Operator State | NM |
| Operator Country | USA |
| Operator Zip code | 87746 |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | PVT |
| Departure City | Bell Ranch Apt |
| Departure State | NM |
| Departure Country | USA |
| Departure Time | 930 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | PVT |
| Destination City | Bell Ranch Apt |
| Destination State | NM |
| Destination Country | USA |
| Specific Phase of Flight | Maneuvering |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Apr 2 2008 7:25PM |
| User who most recently changed record | BOWL |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |