ASN Wikibase Occurrence # 294300
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| Date: | Thursday 9 December 2004 |
| Time: | 13:30 LT |
| Type: |  Bell 206L-1 |
| Owner/operator: | Evergreen Helicopters Inc. |
| Registration: | N5007F |
| MSN: | 45186 |
| Year of manufacture: | 1978 |
| Engine model: | Allison 250-C-30P |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Patterson, Louisiana -
 United States of America
|
| Phase: | Unknown |
| Nature: | Ferry/positioning |
| Departure airport: | SS-198, GM |
| Patterson Municipal Heliport, LA (PTN/KPTN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot lifted off and approximately 50 feet above ground level (agl), the engine lost power. The helicopter was at an airspeed and altitude combination (below height/velocity curve), and the pilot was unable to execute a successful autorotation. The helicopter contacted the ground in a high rate of descent, resulting in the main rotor blade contacting the tail boom. At the time of the incident the helicopter contained less then 200 pounds of fuel and the pilot had not engaged the fuel boost pump circuit breakers before liftoff. The Bell 206L-1 flight manual, revision 21, indicated the following: "Warning: If both fuel boost pumps fail, unusable fuel may be as high as 150 pounds due to inability to transfer fuel from the forward cells."
Probable Cause: The loss of engine power due to fuel starvation resulting from the pilot's failure to activate the fuel boost pumps prior to takeoff. A contributing factor was that the helicopter was at an airspeed and altiutude combination (below height/velocity curve) which precluded the pilot from executing a successful autorotation.
Accident investigation:
 |
|
Sources:
NTSB DFW05CA044
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Oct-2022 14:56 | ASN Update Bot | Added |
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