ASN Wikibase Occurrence # 30059
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| Date: | Tuesday 8 August 2000 |
| Time: | 18:30 |
| Type: |  Bell OH-58C Kiowa |
| Owner/operator: | Hillsborough Co Sheriff's Office |
| Registration: | N9142S |
| MSN: | 41531 |
| Year of manufacture: | 1971 |
| Total airframe hrs: | 5364 hours |
| Engine model: | Allison T-63-A720 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Vandenberg Airport, Hillsborough Co, 6nm E of Tampa, FL -
 United States of America
|
| Phase: | Landing |
| Nature: | Unknown |
| Departure airport: | X16 |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While attempting a practice 180-degree autorotative turn, an unusual vibration was felt in the airframe followed by a decrease in main rotor and engine rpm. The helicopter collided with the runway in a level attitude, bounced once, and then settled back onto the runway. The examination of the airframe disclosed that the tailboom was deformed and cracked but remained attached to the helicopter. The examination disclosed that the tailboom damage was associated with inflight low rotor induced oscillation and the airframe examination failed to disclose typical hard landing damage.
Probable Cause: The pilot's improper use of flight controls that resulted in low rotor induced oscillation during a practice autorotation.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001212X21653&key=1
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=9142S
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Sep-2008 01:00 | ASN archive | Added |
| 13-Apr-2015 15:29 | Dr. John Smith | Updated [Registration, Cn, Operator] |
| 13-Apr-2015 22:21 | Dr. John Smith | Updated [Date, Time, Registration, Cn, Operator, Total fatalities, Total occupants, Other fatalities, Location, Country, Phase, Nature, Departure airport, Destination airport, Source, Damage, Narrative] |
| 21-Dec-2016 19:16 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 19:20 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 12-Dec-2017 19:01 | ASN Update Bot | Updated [Cn, Operator, Nature, Departure airport, Destination airport, Source, Narrative] |
| 30-May-2023 00:13 | Ron Averes | Updated [[Cn, Operator, Nature, Departure airport, Destination airport, Source, Narrative]] |
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