ASN Wikibase Occurrence # 179691
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| Date: | Saturday 19 September 2015 |
| Time: | 12:00 |
| Type: |  Cessna 150M |
| Owner/operator: | Private |
| Registration: | N714CW |
| MSN: | 15079083 |
| Year of manufacture: | 1976 |
| Total airframe hrs: | 8300 hours |
| Engine model: | Continental O-200-A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Frederick County, SW Mt Airy, MD -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Westminster, MD (2W2) |
| Leesburg, VA (JYO) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot reported that, about 10 minutes after departure, when the airplane was at 2,500 ft mean sea level, the engine was not producing full power. He adjusted his course to be near an airport as a precaution. Shortly after, the engine began to run roughly, then lost more power. The pilot declared an emergency and found a field for landing; during the approach, he adjusted his path to avoid power lines and attempted a downwind approach and landing to the opposite direction. He realized he could not make the field, so he landed on an adjacent field of mature corn. As his airplane touched down, it flipped over, which resulted in substantial damage to the airframe. Postaccident examination of the airplane revealed that the No. 4 cylinder had fractured at the barrel portion of the cylinder, separating from the bottom of the cylinder attach point. Examination of the fracture surfaces revealed a fatigue crack that emanated from a corrosion pit on the outer surface of the barrel portion. The fatigue failure of the No. 4 cylinder barrel led to the loss of engine power.
Probable Cause: The in-flight fatigue failure of the No. 4 cylinder barrel, which resulted in a total loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=714CW
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Sep-2015 00:49 | Geno | Added |
| 21-Dec-2016 19:30 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 19-Apr-2020 17:26 | ASN Update Bot | Updated [Time, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
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