ASN Wikibase Occurrence # 202161
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| Date: | Tuesday 6 April 1999 |
| Time: | 17:30 LT |
| Type: |  Enstrom F-28C |
| Owner/operator: | Carl D. Hagglund |
| Registration: | N51770 |
| MSN: | 445 |
| Engine model: | Lycoming HIO-360-F1AD |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Pendleton, OR -
 United States of America
|
| Phase: | Take off |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During takeoff from the refueling pad, the helicopter's engine lost power and the pilot attempted an autorotation. Because the aircraft did not yet have sufficient airspeed or altitude to complete a successful autorotation, it landed hard and the main rotor blades flexed downward and impacted the tail boom. It was later determined that water contamination had accidentally been transferred from a portable refueling barrel to the aircraft's fuel system during hot refueling (with engine still running). It could not be determined how water was introduced into the refueling barrel.
Probable Cause: A loss of power due to water contamination of the fuel. Factors include the inability of the helicopter to perform a successful autorotation immediately after takeoff.
Accident investigation:
 |
|
Sources:
NTSB SEA99LA048
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Nov-2017 12:41 | ASN Update Bot | Added |
| 08-Apr-2024 07:35 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
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