- Date
- August 4, 1968
- Place
- Dubois, WY · DUBOIS, WY
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N8471EBell 47G3B1
- Status
- Completed · report October 15, 1968
- Report
- Brief approved by the director
- Case key
- 108837
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-2730 68/8/4 DUBOIS,WYO BELL 47G3B1 CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 23, 2250 TIME - 0830 N8471E PX- 0 0 1 CTR PASSG-D TOTAL HOURS, 150 IN TYPE, DAMAGE-SUBSTANTIAL OT- 0 0 0 NOT INSTRUMENT RATED. TYPE OF ACCIDENT PHASE OF OPERATION COLLIDED WITH: OBJECT LANDING: FINAL APPROACH COLLISION WITH GROUND/WATER: UNCONTROLLED IN FLIGHT: UNCONTROLLED DESCENT PROBABLE CAUSE(S) PILOT IN COMMAND - EXERCISED POOR JUDGMENT WEATHER - DOWNDRAFT,UPDRAFTS WEATHER - UNFAVORABLE WIND CONDITIONS FACTOR(S) WEATHER - HIGH DENSITY ALTITUDE WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED WEATHER FORECAST - UNKNOWN/NOT REPORTED SKY CONDITION CEILING AT ACCIDENT SITE CLEAR UNLIMITED VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE 5 OR OVER(UNLIMITED) NONE OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F NONE 75 WIND DIRECTION-DEGREES WIND VELOCITY-KNOTS 315 30 TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN VFR NONE REMARKS- ATTEMPTED LDG ON TOP OF MT.SETTLED,T/R STRUCK ROCK.WIND 30K,GUSTING.DENSITY ALT 14500 FT.
Aircraft
- Registration
- N8471E
- Reported as
- Bell 47G3B1
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Other investigations on N8471E · 5
Matched to the same aircraft by N-number and date.
NTSB MKC89LA181Accident · Minor injuriesLimited investigationFinal reportWaseca, MNInadequate preflight by the pilot which resulted in fuel exhaustion due to an inadequate supply of fuel. The tailwind, high obstruction (power line), and crop (beans) were contributing factors.NTSB CHI83LA264Accident · No injuriesLimited investigationFinal reportLitchfield, MNThe helicopter rolled over while attempting a takeoff after servicing from a truck platform for a spraying operation. The hose used to put the chemical spray into the hopper was not removed. When takeoff was attempted the acft was tethered to the ground rig…NTSB MKC79FCD41Accident · Serious injuriesClosedPierson, IANTSB DEN68A0008Accident · 2 fatalClosedBondurant, WYNTSB SEA67A0005Accident · No injuriesClosedLakeview, OR