ASN Wikibase Occurrence # 266710
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| Date: | Thursday 12 August 2021 |
| Time: | 11:00 |
| Type: |  Beechcraft 77 Skipper |
| Owner/operator: | Private |
| Registration: | N3873Y |
| MSN: | WA-265 |
| Year of manufacture: | 1981 |
| Total airframe hrs: | 6533 hours |
| Engine model: | Lycoming O-235 SERIES |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near Stanley, NM -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Albuquerque-Double Eagle II Airport, NM (KAEG) |
| Borger Airport, TX (BGD/KBGD) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
On August 12, 2021, about 1100 mountain daylight time, a Beech 77, N3873Y, was substantially damaged when it was involved in an accident near Stanley, New Mexico. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.
The pilot departed an airport at an elevation about 5,800 ft mean sea level (msl), and reported that, upon reaching about 6,700 ft msl, the airplane would not continue to climb. The pilot performed a forced landing to a field, during which the right wing impacted a fence post, resulting in substantial damage.
Examination of the engine revealed that all lower spark plugs were severely lead fouled. According to the manufacturer, severely lead fouled spark plugs can lead to misfiring, resulting in a degradation of engine performance. It is likely that the fouled spark plugs resulted in a loss of engine performance and the airplane’s subsequent inability to maintain altitude.
Probable Cause: A loss of engine performance due to lead fouling of the lower spark plugs, which resulted in an off airport forced landing.
Accident investigation:
 |
|
Sources:
NTSB
https://registry.faa.gov/aircraftinquiry/Search/NNumberResult?NNumberTxt=3873Y
https://globe.adsbexchange.com/?icao=a47823&lat=34.946&lon=-106.231&zoom=9.0&showTrace=2021-08-12×tamp=1628790194
https://flightaware.com/live/flight/N3873Y/history/20210812/1716Z/KAEG/L%2035.17157%20-105.85001
https://www.airport-data.com/images/aircraft/001/551/001551738.jpg (photo)
Location
Images:
Photo: NTSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Aug-2021 06:42 | gerard57 | Added |
| 13-Aug-2021 07:54 | RobertMB | Updated [Time, Aircraft type, Registration, Cn, Location, Departure airport, Source, Narrative] |
| 13-Aug-2021 15:22 | aaronwk | Updated [Time, Narrative] |
| 13-Aug-2021 17:30 | Anon. | Updated [Source, Damage, Narrative, Category] |
| 14-Aug-2021 05:49 | aaronwk | Updated [Source, Narrative] |
| 18-Aug-2021 16:07 | Captain Adam | Updated [Destination airport, Narrative] |
Corrections or additions? ... Edit this accident description
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