ASN Wikibase Occurrence # 356589
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| Date: | Wednesday 9 October 1996 |
| Time: | 14:30 LT |
| Type: | Callair B1A |
| Owner/operator: | Private |
| Registration: | N6203X |
| MSN: | 10004 |
| Engine model: | P&W R-985 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Nebraska City, NE -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Yankton, SD (KYKN) |
| Shenandoah, IA (SDA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported he was cruising at 3,300 feet mean sea level. All gauges were 'normal.' He heard a 'loud back fire' and the engine lost power. He pushed the throttle, mixture and propeller control full forward. The engine continued to run at 'idle speed.' During the subsequent forced landing, he landed with 'low airspeed and high sink rate.' The landing gear collapsed and the engine was bent downward. Examination of the engine revealed several spark plugs and the top of the pistons were oil covered. Several spark plugs 'appeared to have been running rich.' There was 'a lot of oil in the plenum chamber' and the supercharger blades had 'excessive rub on the rear face.'
Probable Cause: a supercharger bearing failure. A factor was the excessive sink rate during the forced landing.
Accident investigation:
 |
|
Sources:
NTSB CHI97LA006
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Mar-2024 08:46 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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