ASN Wikibase Occurrence # 133205
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| Date: | Thursday 24 February 1994 |
| Time: | 10:30 LT |
| Type: |  Bell 47G-3B-1 |
| Owner/operator: | Pacific Air Research, Inc. |
| Registration: | N73909 |
| MSN: | 2797 |
| Year of manufacture: | 1962 |
| Total airframe hrs: | 6176 hours |
| Engine model: | Lycoming TVO-435-BIA |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Gold Hill, OR -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE SPRAYING HERBICIDE THE HELICOPTER BEGAN LOSING POWER. THE PILOT ATTEMPTED TO EXECUTE A LANDING IN A CLEARING DURING WHICH A TOTAL POWER LOSS OCCURRED. THE HELICOPTER THEN DESCENDED VERTICALLY FOR APPROXIMATELY 75 FEET BEFORE LANDING HARD. POST CRASH EXAMINATION REVEALED THAT THE FUEL LINE CROSSOVER 'T' FITTING WHICH ROUTES FUEL FROM THE FUEL TANKS TO THE GASCOLATOR AND ENGINE HAD SEPARATED AT ITS WELD.
Probable Cause: SEPARATION OF THE CROSSOVER FUEL LINE, AND THE INABILITY OF THE PILOT IN COMMAND TO MAINTAIN A PROPER RATE OF DESCENT DURING THE AUTOROTATION.
Accident investigation:
 |
|
Sources:
NTSB SEA94LA065
History of this aircraft
Other occurrences involving this aircraft
| 5 February 1964 | N73909 | Elling Halvers | 1 | Near Little Norway, California | |
w/o |
| 30 July 1969 | N73909 | Halvorson-Lent | 3 | Grnd Canyon, Az | |
w/o |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Apr-2024 08:42 | ASN Update Bot | Updated [Time, Other fatalities, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
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