ASN Wikibase Occurrence # 355954
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| Date: | Monday 28 April 1997 |
| Time: | 18:30 LT |
| Type: |  Beechcraft 35 |
| Owner/operator: | Private |
| Registration: | N2839V |
| MSN: | 244 |
| Total airframe hrs: | 6213 hours |
| Engine model: | Continental E-185-11 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | Spokane, WA -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | (KSFF) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that he was conducting a maintenance test flight. He was flying straight and level at 160 mph. The sky was 6,500 feet broken with smooth air. The pilot reported that the airplane started to vibrate. He reported that the vibration started as a minor shake and intensified 'like an earthquake.' The pilot pulled the throttle immediately (less than 3 seconds) and the vibration stopped. An uneventful landing was made. The inspection to the airplane revealed no visible damage. The pilot reported that the vibration was the same kind of vibration that he experienced in the same airplane on August 1, 1996. The only changes made to the airplane since the first vibration had been the installation of a B35 model bulkhead, and the installation of F35 model equivalent counterweights. The airplane exhibited no anomalies. The ruddervators were properly balanced.
Probable Cause: the vibration of the fuselage was due to flutter.
Accident investigation:
 |
|
Sources:
NTSB CHI97IA122
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Mar-2024 17:30 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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