ASN Wikibase Occurrence # 39448
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| Date: | Saturday 15 June 1991 |
| Time: | 12:00 LT |
| Type: |  Aerosport Scamp |
| Owner/operator: | Herman, Judd M. & Smith, Ricky |
| Registration: | N9994A |
| MSN: | CR1 |
| Engine model: | VOLKSWAGEN |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Raeford, NC -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE ESTABLISHED IN THE TRAFFIC PATTERN, THE ENGINE QUIT, AND THE HOME BUILT AIRPLANE COLLIDED WITH TREES BEFORE IMPACTING THE GROUND IN A NOSE LOW ATTITUDE. THE PILOT WAS FATALLY INJURED. A PILOT AT THE AIRPORT REPORTED THAT THE ACCIDENT PILOT HAD BEEN WORKING ON THE ENGINE EARLIER IN THE DAY. DURING GROUND MAINTENANCE, THE ENGINE RAN ROUGHLY AT LOW RPM, AND QUIT SEVERAL TIMES DURING TAXI. HE ALSO OBSERVED THE ENGINE QUIT ON LANDING ROLL-OUT FROM A PREVIOUS FLIGHT THAT DAY. ANOTHER WITNESS HAD SEEN BLACK SMOKE TRAILING THE AIRPLANE DURING A PREVIOUS FLIGHT, AND HAD STATED SO TO THE ACCIDENT PILOT. THE PILOT TOLD HIM THAT HE WAS HAVING TROUBLE WITH THE CARBURETOR. INSPECTION OF THE ENGINE REVEALED THAT ALL SPARK PLUGS WERE HEAVILY SOOTED, AND ONE SPARK PLUG GAP WAS COMPLETELY BRIDGED WITH SOOT DEPOSITS. REPORTEDLY, THERE WAS NO SPRING TENSION IN THE CARBURETOR MIXTURE CONTROL.
Probable Cause: THE PILOT'S IMPROPER ADJUSTMENT OF THE ENGINE CARBURETOR, AND HIS OPERATION OF THE AIRCRAFT WITH A KNOWN POWERPLANT DEFICIENCY. FACTORS IN THIS ACCIDENT WERE: THE LACK OF SPRING TENSION FOR THE FUEL MIXTURE, AND THE FOULED CONDITION OF THE ENGINE SPARK PLUGS.
Accident investigation:
 |
|
Sources:
NTSB ATL91LA111
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 22-Mar-2014 10:40 | harro | Updated [Aircraft type] |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 11-Apr-2024 14:45 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Source, Narrative, Category, Accident report] |
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