ASN Wikibase Occurrence # 195167
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| Date: | Saturday 29 April 2017 |
| Time: | 10:15 |
| Type: |  Yakovlev Yak-52 |
| Owner/operator: | Private |
| Registration: | N132MD |
| MSN: | 833802 |
| Year of manufacture: | 1983 |
| Total airframe hrs: | 1734 hours |
| Engine model: | Vedeneyev M14P |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Tulare County, NW of Porterville, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Porterville, CA (PTV) |
| Porterville, CA (PTV) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airline transport pilot reported that, during a formation flight, the engine started to run rough. Unable to maintain level flight, the pilot detached from the formation to troubleshoot the problem. The pilot noted that there were about 29 gallons of useable fuel onboard and all other indications were normal. The engine continued to lose power, and about 500 ft above the ground, the pilot elected to land in a vineyard. During landing, the airplane touched down, came to an abrupt stop, nosed over, and came to rest inverted.
Postaccident engine examination revealed small pieces of fabric in the fuel screen. In addition, some metal shavings and a small piece of metal were found in the fuel intake and carburetor inlet screen. The origins of the metal piece and shavings could not be determined. It is unlikely that the observed debris was enough to clog the fuel system; however, it is possible that there were other, non-observable pieces of debris in the fuel system that could have resulted in decreased fuel flow and the partial loss of engine power.
Probable Cause: A partial loss of engine power due to contaminants in the fuel system that decreased the fuel flow, the source of which could not be determined.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?nNumberTxt=132MD
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-May-2017 22:36 | Geno | Added |
| 11-Nov-2018 08:32 | ASN Update Bot | Updated [Time, Operator, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
Corrections or additions? ... Edit this accident description
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