ASN Wikibase Occurrence # 169176
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| Date: | Sunday 24 August 2014 |
| Time: | 06:50 |
| Type: |  Robinson R44 Raven II |
| Owner/operator: | Private |
| Registration: | N4246Z |
| MSN: | 12697 |
| Year of manufacture: | 2009 |
| Total airframe hrs: | 444 hours |
| Engine model: | Lycoming IO-540-AE1A5 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | 12 miles south of Pahrump, NV -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Las Vegas, NV (VGT) |
| Las Vegas, NV (VGT) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The commercial pilot reported that, during a practice autorotation, a total loss of engine power occurred about 3,500 ft above ground level. The pilot made several unsuccessful attempts to restart the engine, and he subsequently performed an autorotation emergency landing. During the landing, the helicopter slid forward about 20 ft, the skids dug into the dry lakebed, and the helicopter then nosed over. Subsequently, the main rotor blades impacted the ground, and the helicopter came to rest on its side.
A postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation. The engine was test run at various power settings with no anomalies noted.
Probable Cause: A total loss of engine power during a practice autorotation for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N4246Z
History of this aircraft
Other occurrences involving this aircraft
| 3 January 2019 | N4246Z | Private | 0 | Grace, ID | |
sub |
| Collision with pole or wires | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Aug-2014 19:20 | Aerossurance | Added |
| 26-Aug-2014 04:47 | Geno | Updated [Aircraft type, Operator, Location, Source] |
| 05-Sep-2014 17:23 | Aerossurance | Updated [Time, Operator, Location, Nature, Departure airport, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 30-Nov-2017 18:59 | ASN Update Bot | Updated [Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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