Aircraft Incident/Accident Report
Twelve Oaks Air Estates Airport

Hernando, Florida 34442
Tuesady, March 28, 2000 12:43 EST

| More
NTSB Narrative Summary Released at Completion of Accident
According to the pilot, just after rotation the engine lost power and subsequently impacted trees between two homes. Examination of the engine found normal operational signatures throughout. Examination of the carburetor found that the carburetor accelerator pump did not operate when the throttle was opened. The carburetor was disassembled and the accelerator lower check valve was found contaminated with rusty debris. The acceleration leather plunger was found hard and red in color, similar to the rusty residue. The leather plunger did not fit tightly in the acceleration well. The carburetor bowl exhibited rusty residue in the lower portion. The float level was not measured, but visually appeared normal. Additionally, weather conditions were favorable for the formation of carburetor ice at the time of the accident.
NTSB Probable Cause Narrative
Loss of power due to carburetor contamination. Factors, were the trees, and the weather conditions were conducive to carburetor icing.
Event Information
Type of EventAccident 
Event Date3/28/2000 
Event Day of the WeekTuesday 
Time of Event1243 
Event Time ZoneEastern Standard Time 
Event CityHERNANDO  
Event StateFLORIDA 
Event Country-- 
Zipcode of the event site34442  
Event Date Year2000 
Event Date Month
MidAir Collision IndicatorNo 
On Ground Collision occurred ?No 
Event Location Latitude-- 
Event Location Longitude-- 
Event Location AirportTWELVE OAKS AIR ESTATES  
Event Location Nearest Airport ID5FL7 
Indicates whether the acc/inc occurred off or on an airportOff Airport/Airstrip 
Distance from airport in statute miles
Degrees magnetic from airport40 
Airport Elevation45 
Weather Briefing CompletenessUnknown 
Investigator's weather sourceWeather Observation Facility 
Time of the weather observation1035 Eastern Daylight Time 
Direction of event from weather observation facility (degrees)33 
Weather Observation Facility IDOCF  
Elevation of weather observation facility45 
Distance of event from weather observation facility (units?)13 
Time Zone of the weather observationEDT 
Lighting ConditionsDay 
Lowest Ceiling Height
Lowest Non-Ceiling Height
Sky/Lowest/Cloud ConditionsClear 
Sky Condition for Lowest CeilingNone 
Visibility Runway Visual Range (Feet)
Visibility Runway Visual Value (Statute Miles)
Visibility (Statute Miles) 10 
Air Temperature at event time (in degrees celsius)21 
Dew Point at event time (in degress fahrenheit)11 
Wind Direction (degrees magnetic)290 
Variable Wind IndicatorUnknown 
Wind Speed (knots)
Wind Velocity Indicator Unknown 
Wind Gust IndicatorNot Gusting 
Wind Gust (knots)
Altimeter Setting at event time (in. Hg) 29 
Density Altitude (feet)893 
Intensity of PrecipitationUnknown 
METAR weather report -- 
Event Highest InjurySerious 
On Ground, Fatal Injuries
On Ground, Minor Injuries
On Ground, Serious Injuries
Injury Total Fatal-- 
Injury Total Minor-- 
Injury Total None-- 
Injury Total Serious
Injury Total All
Investigating AgencyNTSB 
NTSB Docket Number (internal use)220 
NTSB Notification Source-- 
NTSB Notification DateMar 28 2000 12:00AM 
NTSB Notification Time1500 
Fiche Number and/or location -used to find docket informationIMAGE 
Date of most recent change to recordMar 4 2001 7:06AM 
User who most recently changed recorddbo  
Basic weather conditionsVisual Meteorological Cond 
FAA District Office-- 
Aircraft Involved
Aircraft #1
Aircraft Registration NumberN67HS 
NTSB NumberATL00LA039  
Missing Aircraft Indicator
Federal Aviation Reg. PartPart 91: General Aviation 
Type of Flight Plan filedNone 
Flight plan Was Activated?-- 
DamageSubstantial 
Aircraft FireNone 
Aircraft ExplosionNone 
Aircraft Manufacturer's Full NameAlon  
Aircraft ModelA-2A  
Aircraft Series IdentifierA-2A  
Aircraft Serial NumberB-251  
Certified Max Gross Weight1345 
Aircraft CategoryAirplane 
Aircraft Registration ClassU.S. Registered/U.S. Soil 
Aircraft is a homebuilt?No 
Flight Crew Seats-- 
Cabin Crew Seats-- 
Passenger Seats-- 
Total number of seats on the aircraft
Number of Engines
Fixed gear or retractable gearFixed 
Aircraft, Type of Last InspectionAnnual 
Date of Last InspectionSep 10 1999 12:00AM 
Airframe hours since last inspection123 
Airframe Hours3180 
ELT InstalledYes 
ELT ActivatedNo 
ELT Aided Location of Event SiteNo 
ELT Type-- 
Aircraft Owner NameEDWARD M. SMITH  
Aircraft Owner Street Address4405 W SAN CARLOS ST  
Aircraft Owner CityTAMPA  
Aircraft Owner StateFL 
Aircraft Owner Country  
Aircraft Owner Zipcode33629  
Operator is an individual?-- 
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 certificateNone 
Other Operator of large aircraft?No 
Certified for Part 133 or 137 OperationUnknown 
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 BoardNo 
Departure Point Same as EventYes 
Departure Airport Code5FL7 
Departure City  
Departure State  
Departure Country  
Departure Time930 
Departure Time ZoneEST 
Destination Same as Local Fltdest & departure same, accident can occur anywhere 
Destination Airport Code  
Destination City  
Destination State  
Destination Country  
Specific Phase of FlightTakeoff 
Report sent to ICAO?-- 
Evacuation occurred-- 
Date of most recent change to recordMar 4 2001 7:06AM 
User who most recently changed recorddbo  
Since inspection or accident-- 
Event Location Runway Number and Location4  
Runway Length2655 
Runway Width100 
Sight Seeing flightNo 
Air Medical FlightNo 
Medical Flight--