ASN Wikibase Occurrence # 359617
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| Date: | Friday 28 October 1994 |
| Time: | 15:15 LT |
| Type: | Hiller UH-12E-4 |
| Owner/operator: | Northwest Helicopters Inc. |
| Registration: | N80NW |
| MSN: | 5104 |
| Total airframe hrs: | 3758 hours |
| Engine model: | Allison250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Morton, WA -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
SHORTLY AFTER TAKEOFF, THE ENGINE EXPERIENCED A LOSS OF ENGINE POWER. THE PILOT INITIATED A FORCED LANDING TO AN OPEN AREA, WHERE DURING THE LANDING, THE HELICOPTER ROLLED OVER. AN ENGINE EXAMINATION REVEALED A LARGE QUANTITY OF WATER IN THE FUEL SYSTEM AND AN O-RING IN POOR CONDITION ON THE STEM OF THE FUEL FILLER CAP THAT ALLOWED FLUID TO LEAK THROUGH.
Probable Cause: A LEAK IN THE FUEL FILLER CAP AND WATER IN THE FUEL SYSTEM. A FACTOR TO THE ACCIDENT WAS: INADEQUATE PREFLIGHT.
Accident investigation:
 |
|
Sources:
NTSB SEA95LA013
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Mar-2024 12:51 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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