ASN Wikibase Occurrence # 21144
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| Date: | Tuesday 17 June 2008 |
| Time: | 10:36 |
| Type: | Helton Lark 95 |
| Owner/operator: | Leonard E. Notek |
| Registration: | N86657 |
| MSN: | 9506 |
| Total airframe hrs: | 1206 hours |
| Engine model: | Continental C90 |
| Fatalities: | Fatalities: 1 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | West Carrollton, OH -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Ferry/positioning |
| Departure airport: | Moraine, OH (I73) |
| Reno, NV | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Shortly after takeoff, the airplane entered a descending left turn. The airplane contacted a utility pole, a light pole, and a tree prior to coming to rest. A witness stated the airplane sounded fine on takeoff, but the engine began to lose power shortly thereafter. Post accident inspection of the airplane and engine revealed the number four cylinder sustained impact damage in the area of the top spark plug. The top spark plug on this cylinder was found separated from the engine. The top spark plugs on the remaining cylinders were loose. The accident occurred on the first flight following an annual inspection. The mechanic who signed off the inspection stated he checked the torque on the spark plugs after they were installed. The airplane was topped off with fuel prior to the flight. The pilot's logbook did not show any entries indicating that he had ever flown a Lark 95 prior to the accident flight and the passenger stated this was the pilot's first flight in the airplane.
Probable Cause: The improper installation of spark plugs during the annual inspection which resulted in a loss of engine power shortly after takeoff. Contributing to the accident was the lack of suitable terrain during the forced landing.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 17-Jun-2008 11:04 | L1011fan | Added |
| 17-Jun-2008 11:13 | L1011fan | Updated |
| 19-Jun-2008 22:53 | harro | Updated |
| 19-Jun-2008 22:55 | harro | Updated |
| 19-Jun-2008 22:58 | harro | Updated |
| 19-Jun-2008 23:00 | harro | Updated |
| 24-Jun-2008 23:27 | Fusko | Updated |
| 05-Jul-2008 23:41 | Fusko | Updated |
| 21-Dec-2016 19:14 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 19:16 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 19:20 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 03-Dec-2017 11:23 | ASN Update Bot | Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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