ASN Wikibase Occurrence # 963
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| Date: | Tuesday 20 November 2007 |
| Time: | 14:45 |
| Type: |  Robinson R22 Beta |
| Owner/operator: | Silver State Helicopters |
| Registration: | N463SH |
| MSN: | 4038 |
| Year of manufacture: | 2006 |
| Total airframe hrs: | 1858 hours |
| Engine model: | Lycoming O-360-J2A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Ramona, San Diego County, California -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | El Cajon, CA (SEE) |
| Ramona, CA (RNM) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While demonstrating a practice 180-degree autorotation to landing, the certified flight instructor allowed the helicopter to develop an excessive descent rate and low rotor rpm, which resulted in a hard landing. Although he attempted to take corrective action, he did not do so in time to keep the helicopter from contacting the asphalt surface with sufficient force to result in substantial damage to the helicopters airframe. Examination of the helicopter revealed no mechanical anomalies.
Probable Cause: An excessive descent rate during a simulated 180-degree power-off autorotation, and the flight instructor's failure to initiate corrective action in time to keep the helicopter from impacting the terrain.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20071210X01920&key=1
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=463SH
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Jan-2008 21:15 | JINX | Added |
| 17-Apr-2009 12:06 | harro | Updated |
| 29-Sep-2016 21:46 | Dr.John Smith | Updated [Operator, Location, Departure airport, Source, Narrative] |
| 21-Dec-2016 19:13 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 19:14 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 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] |
| 04-Dec-2017 18:59 | ASN Update Bot | Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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