Marks Municipal Airport
Aircraft Accident/Incident Report

Clarksville, Virginia 23927
Sunday, January 27, 2002 14:00 EST

NTSB Narrative Summary Released at Completion of Accident

The pilot was performing a local familiarization flight, just after the airplane had been returned to an airworthy condition after an engine overhaul and propeller replacement. A witness about 1 1/2 miles from the airport reported that the airplane's engine was not running, then appeared restart as the airplane passed by. He subsequently saw the airplane bank sharply to the right, then descend out of view. Another witness, who had just landed, saw the airplane approach the airport, then bank to the right, and disappear below a tree line. He also noted that the airplane "did not seem to have the power it needed to stay airborne." A test run performed on the engine revealed no mechanical deficiencies, and a carburetor icing probability chart indicated a possibility of serious icing at glide power.

NTSB Probable Cause Narrative

The pilot's failure to maintain airspeed after a loss of engine power, which resulted in an inadvertent stall/spin. Also causal, was the loss of engine power for undetermined reasons.

Event Information

Type of Event Accident
Event Date 1/27/2002
Event Day of the Week Sunday
Time of Event 1400
Event Time Zone Eastern Standard Time
Event City Clarksville
Event State VIRGINIA
Event Country --
Zipcode of the event site 23927
Event Date Year 2002
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 363550N
Event Location Longitude 0783335W
Event Location Airport Marks Municipal Airport
Event Location Nearest Airport ID W63
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 220
Airport Elevation 421
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1359 Eastern Standard Time
Direction of event from weather observation facility (degrees) 250
Weather Observation Facility ID AVC
Elevation of weather observation facility 430
Distance of event from weather observation facility (units?) 26
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) 20
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 230
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.27
Density Altitude (feet) 680
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) 13799
NTSB Notification Source FAA EROC
NTSB Notification Date Jan 27 2002 12:00AM
NTSB Notification Time 1450
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Aug 26 2003 8:17AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Richmond FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N722Z
NTSB Number IAD02LA028
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 Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Wilburn
Aircraft Model Jodel F-12
Aircraft Series Identifier --
Aircraft Serial Number F-7002
Certified Max Gross Weight 1600
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Annual
Date of Last Inspection Dec 14 2001 12:00AM
Airframe hours since last inspection 0.4
Airframe Hours 80.3
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Garlington C Wilburn
Aircraft Owner Street Address --
Aircraft Owner City Clarksville
Aircraft Owner State VA
Aircraft Owner Country USA
Aircraft Owner Zipcode 23927
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code W63
Departure City Clarksville
Departure State VA
Departure Country USA
Departure Time 1435
Departure Time Zone EST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code W63
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Jan 29 2003 10:46PM
User who most recently changed record COXP
Since inspection or accident Time of Accident
Event Location Runway Number and Location 22
Runway Length 4500
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --