ASN Wikibase Occurrence # 58764
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| Date: | Wednesday 18 February 2009 |
| Time: | 10:00 |
| Type: |  Cessna 152 |
| Owner/operator: | KS Aviation Inc. |
| Registration: | N48761 |
| MSN: | 15283368 |
| Year of manufacture: | 1979 |
| Total airframe hrs: | 8823 hours |
| Engine model: | Lycoming O-235-L2C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Turlock, CA -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | Turlock, CA (O15) |
| Turlock, CA (O15) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The flight instructor and student were performing a series of touch-and-go pattern operations. The instructor reported that the engine lost power during the initial climb. He took control of the airplane from the student and verified that the mixture was fully enriched and the fuel shut off valve was in the "on" position. These actions had no effect, so he executed a forced landing in a nearby field. During the landing roll, the nosewheel sunk into the soft ground and the airplane nosed over and came to rest inverted. A postaccident examination of the engine by a licensed airframe and powerplant mechanic revealed that the bottom spark plugs of the number one and four cylinders exhibited evidence of water. Water was observed within the fuel sump; however, no water contamination was found in the fuel drained from the airplane's tanks. The engine was successfully run at various speeds with no anomalies noted. Review of the carburetor ice probability chart revealed that the temperature and dew point near the time of the accident were conducive to serious icing at any power setting. The instructor did not report applying carburetor heat following the engine failure.
Probable Cause: The loss of engine power due to carburetor icing resulting from the pilot's failure to apply carburetor heat. Contributing to the accident was the instructor's inadequate supervision of the flight.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 01-Dec-2017 12:12 | ASN Update Bot | Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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