ASN Wikibase Occurrence # 353107
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Date: | Wednesday 30 June 1999 |
Time: | 07:00 LT |
Type: | Hiller UH-12ET |
Owner/operator: | Pacific Valley Aviation |
Registration: | N7173F |
MSN: | 2011 |
Total airframe hrs: | 12083 hours |
Engine model: | Allison 250-C20B |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Williams, CA -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Agricultural |
Departure airport: | Colusa, CA |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:While spraying a rice field the engine suddenly quit. The pilot force landed in the field severing the tail boom. The pilot reported the turbine powered helicopter had been fueled the day before the accident, however, he did not visually confirm it. The aircraft had only flown 0.5 hours during this flight. Examination of the fuel system revealed a broken wire in the fuel quantity indicating system. According to the maintenance manual for this helicopter, the open circuit caused by the wire breakage will cause a fuel quantity indication of 34 gallons when the tank is empty.
Probable Cause: The pilot's inadequate preflight planning and verification that fuel was available for the intended flight. A factor was the fuel quantity false indication.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | LAX99LA237 |
Status: | Investigation completed |
Duration: | 1 year and 4 months |
Download report: | Final report |
|
Sources:
NTSB LAX99LA237
Location
Revision history:
Date/time | Contributor | Updates |
09-Mar-2024 10:23 |
ASN Update Bot |
Added |
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