Aerospatiale SA315B N9007N
20 April 1982 · Big Piney, Wyoming, United States · Serious injuries
Summary
On 20 April 1982 at about 23:10 local time, a Aerospatiale SA315B registered N9007N, operated by High Life Helicopters, was involved in an accident near Big Piney, Wyoming, United States. One person was on board and one was seriously injured. The aircraft was destroyed. No probable cause statement is available for this record.
The record
- Date
- at 23:10
- Classification
- Accident
- Location
- Big Piney, Wyoming, United States
- Coordinates
- Not recorded
- Aircraft
- Aerospatiale SA315B
- Registration
- N9007N
- Category
- Helicopter
- Engines
- 1
- Operator
- High Life Helicopters
- Operating rule
- Part 133: Rotorcraft Ext. Load
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- DEN82FTC03
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 ACFT WAS ENGAGED IN SEISMIC ACTIVITY SUPPLYING EXPLOSIVES BY LONG LINE. THE ENG FAILED AT ABOUT 400-500 FT AGL. THE LOAD WAS RELEASED & AN OPEN FIELD WAS SELECTED. AT ABOUT 150 FT AGL THE PLT WAS UNABLE TO MAINTAIN ROTOR RPM & THE ACFT IMPACTED THE GROUND IN AN UPRIGHT POSITION. THE ENG TEARDOWN INDICATED A FATIGUE FAILURE OF THE #4 BLADE ON THE AXIAL COMPRESSOR ASSEMBLY. FATIGUE CRACK DEVELOPOMENTOCCURRED ACROSS APPROXIMATELY 2/3 OF THE PLATFORM AREA BEFORE FINAL SEPARATION OCCURRED. THE BLADE SEPARATION CAUSED SEVERE INTERNAL DAMAGE WITHIN THE COMPRESSOR ASSEMBLY INCLUDING EXTREME AXIAL WHEEL DAMAGE, DESTRUCTIONOF THE AXIAL COMPRESSOR DIFFUSER & BEARING FAILURE.
Quoted verbatim from the NTSB record.
Other Aerospatiale SA315B accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 15 Sep 1982 | Aerospatiale SA315B | Near Kemmerer, Wyoming, United States | Rocky Mountain Helicopters, In | Serious injuries | - |
| 15 Apr 1982 | Aerospatiale SA315B | Thayne, Wyoming, United States | Evergreen Helicopters, Inc. | Minor injuries | - |
| 7 Sep 1984 | Aerospatiale SA315B | Lyman, Wyoming, United States | Evergreen Helicopters | Minor injuries | - |
| 17 Sep 1984 | Aerospatiale SA315B LAMA | Mountain View, Wyoming, United States | - | No injuries | - |
| 11 Nov 1984 | Aerospatiale SA315B (LAMA) | Oak City, Utah, United States | - | Minor injuries | - |
| 3 Jan 1985 | Aerospatiale SA315B | Salt Lake City, Utah, United States | Continental Helicopter | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 May 1982 | Cessna 180D | Gillette, Wyoming, United States | Laurita Hefner/Sanna Green | No injuries | - |
| 19 May 1982 | Gulfstream American G-159C | Gillette, Wyoming, United States | U.s. Aviation, Inc./Air U.s., | No injuries | - |
| 8 Jun 1982 | Grumman G-159C | Gillette, Wyoming, United States | U.s. Aviation, Inc. | No injuries | - |
| 8 Oct 1982 | Helio H-395 | Gillette, Wyoming, United States | Jonathan H. Reiners | No injuries | - |
| 21 Dec 1982 | Swearingen SA-227AC | Gillette, Wyoming, United States | Pioneer Airlines | No injuries | - |
| 27 May 1982 | Cessna 172P | Osage, Wyoming, United States | Northern Productions | Fatal | 1 |