ASN Wikibase Occurrence # 380307
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| Date: | Tuesday 27 December 1983 |
| Time: | 13:00 LT |
| Type: |  Bell 206B III |
| Owner/operator: | Idaho Helicopters |
| Registration: | N206JH |
| MSN: | 2918 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 1220 hours |
| Engine model: | Allison 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Mountain City, NV -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Survey |
| Departure airport: | Boise, ID |
| Mountain City, NV | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE HELICOPTER COLLIDED WITH THE SNOW COVERED GROUND AFTER THE ENG QUIT DURING A POWER-LINE PATROL AT ABOUT 30 FT AGL. THE PLT REPORTED THAT THE VISIBILITY WAS 1/2 MILE WITH LIGHT SNOW FALLING. HE ALSO SAID HE COULD SEE 4 TO 7 OF THE SUPPORTING STRUCTURES. THESE POLES ARE SPACED ABOUT 350 FT APART SO SEVEN POLES TOTALS LESS THAN 1/2 MILE. THE BELL 206BFLT MANUAL STATES THAT 'OPERATIONS ARE PERMITTED IN FALLING SNOW WHEN VISIBILITY IS IN EXCESS OF 1/2 MILE, BUT FLT DURATION IS LIMITED TO 1 AND 1/2 HOURS.' INVESTIGATION OF THE ENGINE AFTER THE ACCIDENT REVEALED THAT WHEN THE TOP PLUG OF THE FUEL PUMP FILTER WAS LOOSENED, THE SOUND OF ESCAPING AIR WAS NOTED. INVESTIGATION ALSO REVEALED THAT ON THE DAY OF THE ACCIDENT THE FORWARD FUEL BOOST PUMP HAD BEEN REPLACED WITH A NEW IC-38-L TYPE PUMP WHICH HAD BEEN SIGNED OFF AS HAVING BEEN CHECKED FOR PRESSURE AND BLED.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB LAX84LA117
History of this aircraft
Other occurrences involving this aircraft
| 26 April 2019 | N206JH | Wilbur Ellis Co | 0 | near Oakridge, Lane County, OR | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Apr-2024 15:08 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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