ASN Wikibase Occurrence # 263391
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| Date: | Saturday 29 May 2021 |
| Time: | 11:06 |
| Type: |  Stoddard-Hamilton Glasair Super II FT |
| Owner/operator: | Private |
| Registration: | N8176J |
| MSN: | 2123 |
| Year of manufacture: | 1999 |
| Engine model: | Eggenfellner E6 3.6 Liter |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | near Darby, MT -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Stevensville Airport, MT (K32S) |
| Darby, MT | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
On May 29, 2021, about 1015 mountain daylight time, an experimental, amateur-built Glasair II S FT airplane, N8176J, was substantially damaged when it was involved in an accident near Darby, Montana. The pilot and the passenger sustained serious injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.
The pilot was conducting a local flight with a passenger when he received a low oil pressure warning, and he decided to perform a precautionary landing to a nearby grass runway. While on final approach for landing, the pilot determined that the airplane was high and fast, and he attempted to slip to slow the airplane and descend quickly, but about halfway down the runway, chose to go around and began a turn to land in the other direction. About threequarters of the way through the turn, the pilot “felt the airplane begin to stall.” He pushed the nose down and the airplane contacted the ground in a left-wing-low, nose-down attitude.
The automotive conversion engine was rotated by hand after removal of the flywheel dampener plate. About 2 quarts of oil was drained from the engine. Examination of the crankshaft and connecting rods revealed no anomalies. The oil filter and adapter were removed, and black RTV sealant was noted around the base of the filter adapter. The oil filter element was inspected and found to contain a sliver of black RTV material; however, based on the available information, the reason for the low oil pressure indication could not be determined.
Probable Cause: The pilot’s impact with terrain during a go-around following an attempted precautionary landing due to a low oil pressure indication. The reason for the low oil pressure indication could not be determined based on the available information.
Accident investigation:
 |
|
Sources:
https://nbcmontana.com/news/local/plane-crash-in-ravalli-county-2-injured
https://www.krtv.com/news/montana-and-regional-news/two-men-injured-after-small-plane-crashes-near-darby
NTSB
FAA
https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=N8176J
Location
Images:
Photos: NTSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-May-2021 06:50 | gerard57 | Added |
| 30-May-2021 07:43 | RobertMB | Updated [Aircraft type, Location, Narrative] |
| 30-May-2021 08:02 | gerard57 | Updated [Narrative] |
| 01-Jun-2021 14:55 | RobertMB | Updated [Time, Aircraft type, Registration, Cn, Source, Narrative] |
| 01-Jun-2021 15:42 | Anon. | Updated [Source] |
| 01-Jun-2021 20:56 | Captain Adam | Updated [Narrative] |
Corrections or additions? ... Edit this accident description
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