ASN Wikibase Occurrence # 153221
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| Date: | Monday 11 February 2013 |
| Time: | 10:30 |
| Type: |  Bell 206B JetRanger |
| Owner/operator: | Aerowest Helicopter Svc |
| Registration: | N360AW |
| MSN: | 2413 |
| Year of manufacture: | 1978 |
| Total airframe hrs: | 16259 hours |
| Engine model: | Rolls Royce 250 C20B |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Jemez Mountains, Los Alamos, NM -
 United States of America
|
| Phase: | Landing |
| Nature: | Survey |
| Departure airport: | Ponderosa, NM |
| Ponderosa, NM | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported a total loss of engine power that occurred while flying at 50 miles per hour, at an altitude of about 200 feet above ground level during a wildlife survey. He stated that there were no unusual noises or warnings before the loss of engine power and that the engine spooled down just as if he were shutting the engine down. During the autorotation the helicopter lost rotor rpm, resulting in a hard touchdown. The main rotor blades partially severed the tail boom, and the helicopter rolled over on its left side. A postaccident examination of the airframe and engine did not reveal any anomalies that would have caused the loss of engine power. With the exception of a momentary power surge, the engine operated normally during an engine run. Both centrifugal fuel pumps were tested, and one was subsequently torn down; no anomalies with the fuel pumps were discovered that would have precluded normal operation.
Probable Cause: A total loss of engine power for reasons that could not be determined because the 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=360AW
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Feb-2013 00:18 | gerard57 | Added |
| 12-Feb-2013 03:26 | gerard57 | Updated [Aircraft type] |
| 12-Feb-2013 13:16 | Geno | Updated [Registration, Cn, Operator, Location, Source, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 28-Nov-2017 14:08 | ASN Update Bot | Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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