ASN Wikibase Occurrence # 358044
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| Date: | Thursday 9 November 1995 |
| Time: | 16:15 LT |
| Type: |  Hughes 369D |
| Owner/operator: | Trinity Helicopters, Inc. |
| Registration: | N58231 |
| MSN: | 88021D |
| Total airframe hrs: | 5717 hours |
| Engine model: | Allison250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Crystal, MI -
 United States of America
|
| Phase: | Taxi |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter was approximately 50 feet above the ground lifting a load of trees when its engine lost power. The pilot attempted autorotation. The helicopter's right skid collapsed on impact with the terrain rolling the helicopter on its side. A witness observed 'black smoke around the ship' as the helicopter descended. Examination of the wreckage at the site revealed fuel to the fuel control, but no fuel in the line from the fuel control to the nozzle. There was approximately 150 pounds of jet fuel in the fuel tank. About ten drops of water were collected from the fuel sump screen. Examination of the nurse truck fuel supply at the site indicated that a filter at the pump was installed at an incorrect angle allowing water to collect in the sump. An examination of the engine at the factory revealed no mechanical anomalies.
Probable Cause: fuel contamination resulting in the loss of engine power, and improper fuel sump screen installation on the nurse truck resulting in contamination of the fuel supply.
Accident investigation:
 |
|
Sources:
NTSB CHI96LA032
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Mar-2024 09:24 | ASN Update Bot | Added |
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