ASN Wikibase Occurrence # 278937
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| Date: | Monday 24 June 2019 |
| Time: | 22:00 LT |
| Type: |  Bell OH-58C Kiowa |
| Owner/operator: | Gainesville City Police |
| Registration: | N911GV |
| MSN: | 40763 |
| Year of manufacture: | 1970 |
| Total airframe hrs: | 11444 hours |
| Engine model: | Allsion 250-C20C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Gainesville, FL -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | Gainesville-J R Alison Municipal Airport, FL (GNV/KGNV) |
| Gainesville-J R Alison Municipal Airport, FL (GNV/KGNV) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During an night instructional flight in a helicopter, the flight instructor was demonstrating a straight-in autorotation to landing following a simulated engine failure. At touchdown, the heels of the landing skids touched first and the helicopter 'rocked†forward, which was followed by several more 'throws†in a counterclockwise motion that became progressively more 'violent.†The instructor described that the helicopter was experiencing pylon whirl and continued to manipulate the flight controls during the ground run until helicopter came to rest. The helicopter's tailboom was substantially damaged during the accident sequence.
Probable Cause: The flight instructor's failure to maintain control of the helicopter during a simulated forced landing autorotation, which resulted in pylon whirl that substantially damaged the helicopter.
Accident investigation:
 |
|
Sources:
NTSB ERA19LA206
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Jun-2022 13:01 | ASN Update Bot | Added |
| 31-May-2023 05:03 | Ron Averes | Updated |
Corrections or additions? ... Edit this accident description
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