ASN Wikibase Occurrence # 353107
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| 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 |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
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:
 |
|
Sources:
NTSB LAX99LA237
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 09-Mar-2024 10:23 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation