Bell 47G-3B-1 N24SD
13 September 2005 · Rock Springs, Wyoming, United States · No injuries
Summary
On 13 September 2005 at about 17:50 local time, a Bell 47G-3B-1 registered N24SD was involved in an accident near Rock Springs, Wyoming, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 17:50
- Classification
- Accident
- Location
- Rock Springs, Wyoming, United States
- Nearest airport
- Na
- Coordinates
- 41.6028, -109.0750
- Aircraft
- Bell 47G-3B-1
- Registration
- N24SD
- Category
- Helicopter
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Other Work Use
- Phase of flight
- Not recorded
- Route
- Rock Springs → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- DEN05LA137
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
the pilot's failure to maintain control of the helicopter during the attempted autorotation after he experienced an engine overspeed that occurred for reasons undetermined.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
According to the pilot, he was maneuvering at approximately 25 feet agl. The pilot stated that he heard a grinding noise and the "helicopter yawed to the right a couple of times." He stated that the engine began to overspeed and he initiated an autorotation. The pilot stated that the helicopter impacted the ground hard, resulting in substantial damage. An examination, revealed that all six shearbolts had failed. Examination of the fracture faces of the six shear bolts revealed signatures consistent with a shearing action. The examination of the helicopter airframe, engine, transmission, and remaining systems revealed no anomalies.
Quoted verbatim from the NTSB record.
Other Bell 47 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 10 Sep 2005 | Bell 47G | Swifton, Arkansas, United States | Sissom and Woods Farms, Inc | Serious injuries | - |
| 5 Jul 2005 | Bell 47G-2A | Oroville, Washington, United States | - | No injuries | - |
| 15 Sep 2005 | Bell 47G-3B | Summerville, Tennessee, United States | Billy G Meeks | Minor injuries | - |
| 19 Jun 2005 | Bell 47G-3B-1 | Brewster, Washington, United States | - | Minor injuries | - |
| 15 Jul 2005 | Bell 47G-4A | Black Oak, Arkansas, United States | Custom Air LLC | No injuries | - |
| 19 May 2005 | Bell 47G-5A | Brush, Colorado, United States | Joel Marwitz | No injuries | - |
All 1,633 records for this type
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 Oct 2005 | Aviat A-1 | Kaycee, Wyoming, United States | - | Serious injuries | - |
| 17 Feb 2005 | Cessna P210N | Lander, Wyoming, United States | Brent G. Bills | No injuries | - |
| 9 Sep 2005 | Robinson R44 II | Jackson, Wyoming, United States | Upper Limit Aviation | No injuries | - |
| 18 Sep 2005 | Shea VANS RV6A | Glendo, Wyoming, United States | - | Serious injuries | - |
| 19 Sep 2005 | North American SNJ-5 | Torrington, Wyoming, United States | Thomas E. Campau | No injuries | - |
| 26 Feb 2005 | Bourgeois-Avid Flyer MK IV | Kaycee, Wyoming, United States | James A. Smith | Fatal | 1 |