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| Date: | Tuesday 9 June 1987 |
| Time: | 07:10 LT |
| Type: |  Hiller UH-12E |
| Owner/operator: | Bonanza Valley Aviation |
| Registration: | N8286 |
| MSN: | 1543 |
| Total airframe hrs: | 2108 hours |
| Engine model: | Lycoming VO-540-B1A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Other fatalities: | 0 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Grafton, ND -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Park River, ND (Y37) |
| Grafton, ND (KGAF) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PLT WAS POSITIONING THE HELICOPTER FOR AN AERIAL APPLICATION PROJECT. BEFORE TAKING OFF, HE CHECKED THE FUEL QUANTITY INDICATOR & ESTIMATED THERE WAS 30 MIN OF FUEL ON BOARD. THE PROPOSED FLT WAS ESTIMATED TO TAKE 10 MIN. DURING FLT, THE ENG LOST POWER & THE PLT MADE AN AUTOROTATION WHICH TERMINATED IN A HARD LANDING. A POST ACDNT EXAM REVEALED THE FUEL TANK WAS EMPTY & THE FUEL GAGE TEST SWITCH WAS DEFECTIVE. RPRTDLY, THE DEFECTIVE SWITCH WOULD RESULT IN AN INACCURATE FUEL QUANTITY INDICATION. NO OTHER PRE-ACDNT FAILURE OR DEFICIENCY WAS FOUND.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB DEN87LA146
History of this aircraft
Other occurrences involving this aircraft
| 6 May 1992 | N8286 | Warren Jackson | 0 | Milford, IA | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Mar-2024 07:34 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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