Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Elk City, Oklahoma 73644
Thursday, April 21, 2011 11:29 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot’s in-flight weather briefing indicated that instrument meteorological conditions, including low ceilings, were forecast for the area. He then contacted the nearest Air Route Traffic Control Center and requested an instrument clearance to a nearby airport. The controller offered to vector the pilot for an instrument landing system, very-high frequency omnidirectional radio range, or area navigation/global positioning system approach to that airport, but the pilot said he was having gyro problems. The pilot said he would divert to a visual flight rules (VFR) airport. Radio and radar contacts were then lost. A postaccident examination of the wreckage at the scene indicated that the airplane struck the shoulder of a road in an inverted, nose-down attitude. The only navigational charts found at the accident scene were a bound VFR chart atlas. No instrument flight rules charts were found. A further examination of the airplane showed that the airplane was equipped with basic VFR instrumentation only. Analysis of radar data revealed that the airplane made three turns: two tight left turns followed by a wide right turn. These turns took place in the last few minutes of flight and were consistent with a spiraling descent.
NTSB Probable Cause Narrative
The pilot's decision to attempt flight into instrument meteorological conditions in an airplane that was equipped for flight in visual meteorological conditions only, which resulted in the pilot’s spatial disoriented and loss of control of the airplane.
Event Information
| Type of Event | Accident |
| Event Date | 4/21/2011 |
| Event Day of the Week | Thursday |
| Time of Event | 1129 |
| Event Time Zone | Central Daylight Time |
| Event City | Elk City |
| Event State | OKLAHOMA |
| Event Country | -- |
| Zipcode of the event site | 73644 |
| Event Date Year | 2011 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 353000N |
| Event Location Longitude | 0992700W |
| 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 | 1253 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 119 |
| Weather Observation Facility ID | CSM |
| Elevation of weather observation facility | 1922 |
| Distance of event from weather observation facility (units?) | 20 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 1000 |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | -- |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 4 |
| Air Temperature at event time (in degrees celsius) | 11 |
| Dew Point at event time (in degress fahrenheit) | 9 |
| Wind Direction (degrees magnetic) | 160 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.01 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KCSM 211653Z 16009KT 4SM BR OVC010 11/09 A30 |
| 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) | 29474 |
| NTSB Notification Source | FAA ASW ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Dec 29 2011 3:06PM |
| User who most recently changed record | bowl |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7804C |
| NTSB Number | CEN11FA300 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Dahlman-Dower |
| Aircraft Model | Tailwind W-8 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | DD1 |
| Certified Max Gross Weight | 1400 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | Yes |
| Flight Crew Seats | 2 |
| 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 | Apr 1 2011 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 1113 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | Unknown |
| Aircraft Owner Name | LAZZARINI ARTHUR A. |
| Aircraft Owner Street Address | PO BOX 1691, 315 W. Walnut |
| Aircraft Owner City | HAILEY |
| Aircraft Owner State | ID |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 83333-1691 |
| Operator is an individual? | No |
| Operator Name | LAZZARINI ARTHUR A. |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | HAILEY |
| Operator State | ID |
| Operator Country | USA |
| Operator Zip code | 83333-1691 |
| 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 | No |
| Departure Airport Code | PUB |
| Departure City | Pueblo |
| Departure State | CO |
| Departure Country | USA |
| Departure Time | 756 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | LBL |
| Destination City | Liberal |
| Destination State | KS |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Sep 24 2011 1:09PM |
| User who most recently changed record | scoa |
| 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 | -- |