ASN Wikibase Occurrence # 353051
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| Date: | Thursday 8 July 1999 |
| Time: | 12:30 LT |
| Type: |  Bell 206B |
| Owner/operator: | U.S. Bureau of Land Management |
| Registration: | N47122 |
| MSN: | 971 |
| Year of manufacture: | 1973 |
| Total airframe hrs: | 6274 hours |
| Engine model: | Allison C20B |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Deadhorse, AK -
 United States of America
|
| Phase: | Standing |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot for an on-demand helicopter company was beginning a flight that was being operated as a visual flight rules (VFR) U.S. Government flight by the U.S Department of Interior, Bureau of Land Management. The pilot loaded his passengers into the helicopter at a remote biological survey site. He then began an engine start, but a main rotor blade tie-down strap was still attached to one of the rotor blades. As the rotor blades began to turn, the strap struck the upper end of the vertical stabilizer, crushing the leading edge in an aft direction. The helicopter's tail boom was deformed and wrinkled, just forward of the tail rotor gear box.
Probable Cause: A failure of the pilot-in-command to perform an adequate preflight inspection, and remove a rotor blade tie-down strap.
Accident investigation:
 |
|
Sources:
NTSB ANC99TA090
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 09-Mar-2024 09:52 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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