ASN Wikibase Occurrence # 34340
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| Date: | Wednesday 24 September 2008 |
| Time: | 15:30 |
| Type: |  Robinson R22 Beta |
| Owner/operator: | Richard R Snure |
| Registration: | N926EL |
| MSN: | 3085 |
| Year of manufacture: | 2000 |
| Total airframe hrs: | 957 hours |
| Engine model: | Lycoming O-320 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | 26 miles from Flagstaff, Arizona -
 United States of America
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | Flagstaff, AZ |
| Flagstaff, AZ | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that due to the density altitude and the weight of the helicopter, he could not gain sufficient airspeed during the takeoff to climb. As the helicopter approached a tree line he initiated a left turn to avoid the trees after receiving a "low rotor" rpm warning. The pilot lowered collective and added throttle just before impacting rough, uneven terrain, which resulted in substantial damage to the helicopter. The pilot stated, "…it [the helicopter] was just too heavy and it was too hot, and the terrain was not level for a run on landing." The density altitude at the time of the accident was calculated to be 10,612 feet.
Probable Cause: The pilot's decision to attempt a takeoff in a high density altitude high gross weight condition that exceeded the takeoff performance capability of the helicopter. The pilot's failure to maintain adequate rotor rpm was also causal. Contributing factors were the high density altitude and the uneven high elevation terrain.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=N926EL
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Sep-2016 00:05 | Dr.John Smith | Updated [Operator, Location, Nature, Departure airport, Source, Narrative] |
| 03-Dec-2017 13:05 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Departure airport, Destination airport, Source, Damage, Narrative, Plane category] |
Corrections or additions? ... Edit this accident description
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