ASN Wikibase Occurrence # 368187
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| Date: | Wednesday 16 August 1989 |
| Time: | 05:30 LT |
| Type: |  Hiller UH-12E |
| Owner/operator: | Moseley Aviation, Inc. |
| Registration: | N7086 |
| MSN: | 1699 |
| Total airframe hrs: | 3292 hours |
| Engine model: | LYCOMING VO-540-C2A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Tolleson, AZ -
 United States of America
|
| Phase: | En route |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT OF THE SPRAY HELICOPTER EXPERIENCED AN ENGINE FAILURE AFTER A TAKEOFF FROM A REFUELING STOP. THE AIRCRAFT AUTOROTATED INTO AN OPEN FIELD, BOUNCED AND ROLLED OVER INTO ITS SIDE. A FUEL SAMPLE TAKEN ON THE SAME DAY REVEALED THAT APPROXIMATELY 15% OF THE FUEL WAS WATER. A LATER TEST OF THE FUEL BY THE COMPANY REVEALED THAT CONTAMINATION WAS TWO QUARTS TO FIVE GALLONS OF FUEL. THE PILOT REPORTED NO MECHANICAL PROBLEMS WITH THE AIRCRAFT PRIOR TO THE ACCIDENT.
Probable Cause: AN ENGINE FAILURE DUE TO WATER CONTAMINATION IN THE FUEL SUPPLY WHICH PRECEDED AN AUTOROTATION AND COLLISION WITH THE GROUND DURING NIGHT TIME CONDITIONS.
Accident investigation:
 |
|
Sources:
NTSB LAX89DUJ09
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-Mar-2024 08:03 | ASN Update Bot | Added |
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