Bell 204B N4580Y
29 July 1987 · Dubois, Wyoming, United States · Serious injuries
Summary
On 29 July 1987 at about 15:50 local time, a Bell 204B registered N4580Y was involved in an accident near Dubois, Wyoming, United States. One person was on board and one was seriously injured. The aircraft was substantially damaged. No probable cause statement is available for this record.
The record
- Date
- at 15:50
- Classification
- Accident
- Location
- Dubois, Wyoming, United States
- Coordinates
- 43.5292, -109.6399
- Aircraft
- Bell 204B
- Registration
- N4580Y
- Category
- Helicopter
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 133: Rotorcraft Ext. Load
- Purpose of flight
- Other Work Use
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- DEN87LA199
People
1 person was seriously injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 1 | 0 | 0 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
THE COMMERCIAL PLT WAS PERFORMING EXTERNAL SLING LOADS IN SUPPORT OF SEISMIC OPERATIONS. THE PLT REPORTED THAT THE ENGINE FAILED DURING A LOAD RELEASE AND THE PLT EXECUTED AN AUTOROTATION. THIS RESULTED IN A HARD LANDING IN HEAVY TIMBER ON SLOPING TERRAIN. THE HELICOPTER ROLLED OVER ON THE RIGHT SIDE. A POST ACCIDENT ENGINE INSPECTION REVEALED NO PREIMPACT MECHANICAL MALFUNCTIONS /FAILURES.
Quoted verbatim from the NTSB record.
Other Bell 204 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 28 Jan 1988 | Bell 204B | Stockton, Alabama, United States | Tensaw Helicopters, Inc. | Serious injuries | - |
| 10 Sep 1988 | Bell 204B | Entiat, Washington, United States | Vancouver Island Helicopters | Fatal | 2 |
| 27 Aug 1985 | Bell 204-B | East Clovis, California, United States | - | Minor injuries | - |
| 11 Jan 1985 | Bell 204 | Snelling, California, United States | - | No injuries | - |
| 20 Jul 1984 | Bell 204 UH 1B | Tams, West Virginia, United States | Ranger Helicopter Service | No injuries | - |
| 12 Sep 1990 | Bell 204B | Keller, Washington, United States | Cazn-Arc Helicopters, Ltd | Fatal | 1 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 2 Jun 1987 | Boeing 727-251 | Casper, Wyoming, United States | - | No injuries | - |
| 26 Dec 1987 | Piper PA-18-125 | Riverton, Wyoming, United States | Western Executive Air | Serious injuries | - |
| 3 Apr 1987 | Champion 7GCBC | Rock Rover, Wyoming, United States | Budd B. Palmer | Serious injuries | - |
| 10 Apr 1987 | Cessna A185F | Gillette, Wyoming, United States | Charles A. Rogler | Minor injuries | - |
| 14 Apr 1987 | Piper PA-18-150 | Glenrock, Wyoming, United States | BOB Boner | No injuries | - |
| 28 Apr 1987 | Beechcraft A24R | Beulah, Wyoming, United States | Albert E. Stone | No injuries | - |