ASN Wikibase Occurrence # 230990
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| Date: | Saturday 30 November 2019 |
| Time: | 11:00 LT |
| Type: |  Yakovlev YAK-52 |
| Owner/operator: | Private |
| Registration: | N52CY |
| MSN: | 889006 |
| Year of manufacture: | 1988 |
| Total airframe hrs: | 829 hours |
| Engine model: | Vedeneyev M-14P |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | NW of Wrightsville, Johnson County, GA -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Waycross-Ware County Airport, GA (AYS/KAYS) |
| Sandersville, GA (OKZ) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During the cruise portion of a repositioning cross-country flight, the engine experienced a catastrophic failure and a total loss of power. The flight instructor maneuvered the airplane for a forced landing in an open field, and about 500 ft above ground level, he lowered the landing gear, which significantly increased the airplane's rate of descent and reduced its airspeed. The airplane touched down in the field and nosed over, resulting in substantial damage to the fuselage, empennage, and wings. Internal examination of the engine revealed that the No. 5 cylinder's exhaust valve seat had dropped into the cylinder and likely fractured into several pieces, as metal fragments were observed in the cylinder. The failure of the exhaust valve led to the total loss of engine power.
Probable Cause: A total loss of engine power due to the failure of the No. 5 cylinder exhaust valve, which resulted in an forced off-airport landing.
Accident investigation:
 |
|
Sources:
FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N52CY
NTSB ERA20LA045
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Nov-2019 21:18 | Geno | Added |
| 02-Dec-2019 16:16 | RobertMB | Updated [Aircraft type, Registration, Cn, Operator, Location, Phase, Nature, Source, Narrative] |
| 26-Mar-2021 16:26 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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