ASN Wikibase Occurrence # 75742
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| Date: | Thursday 24 May 2007 |
| Time: | 19:50 |
| Type: | Westland Wasp HAS Mk I |
| Owner/operator: | Classic Rotors Museum |
| Registration: | N612VH |
| MSN: | F8-7411 |
| Year of manufacture: | 1969 |
| Total airframe hrs: | 2911 hours |
| Engine model: | Rolls-Royce Nimbus 103 |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Ramona, CA -
 United States of America
|
| Phase: | Landing |
| Nature: | Test |
| Departure airport: | Ramona, CA (L39) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that during the flight a severe vibration began throughout the helicopter. The pilot was attempting to make a precautionary landing when the tail rotor stuck a tree. Maintenance personnel for the operator indicated that the vibration was due to a failure of one of the snubber dampeners on a main rotor blade.
Probable Cause: Failure of the pilot to maintain clearance from a tree while performing a precautionary landing. Contributing to the accident was the failure of a snubber dampener that induced a severe vibration in the rotor system.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20070607X00690&key=1
FAA register: 4. http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=612VH
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-Jul-2010 01:01 | Alpine Flight | Added |
| 19-Jun-2013 07:13 | Dr. John Smith | Updated [Time, Cn, Source, Embed code, Narrative] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 04-Dec-2017 18:38 | ASN Update Bot | Updated [Cn, Other fatalities, Nature, Departure airport, Source, Narrative] |
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