N20577

Substantial
None

Grenier Kitfox IVS/N: 4152394

Accident Details

Date
Sunday, September 16, 2007
NTSB Number
NYC07CA230
Location
Moultonboro, NH
Event ID
20071017X01606
Coordinates
43.767776, -71.385276
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
1
Total Aboard
1

Probable Cause and Findings

The failure of both spark plugs in the number 3 cylinder which resulted in a partial loss of engine power.

Aircraft Information

Registration
Make
GRENIER
Serial Number
4152394
Engine Type
Reciprocating
Model / ICAO
Kitfox IVBPAT
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1
Seats
2
FAA Model
KITFOX SERIES IV

Registered Owner (Current)

Name
WERDIER RANDY M
Address
3935 SAARI RD
City
HIBBING
State / Zip Code
MN 55746-8280
Country
United States

Analysis

The pilot of the amateur-built Kitfox IV explained that after a thorough before-takeoff check of systems and instruments, the airplane performed as expected during the takeoff roll and initial climb. About 100 feet above ground level, the engine began "sputtering" and "losing power." The airplane lacked the altitude to return to the runway, so the pilot chose to land straight ahead in a swamp. Post accident examination of the engine revealed that both spark plugs in the number 3 cylinder did not spark. After exchanging the spark plugs, the engine started immediately and ran continuously without interruption.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# NYC07CA230