Aerospatiale SA316B N316BS
3 December 1990 · Vernal, Utah, United States · Minor injuries
Summary
On 3 December 1990 at about 21:45 local time, a Aerospatiale SA316B registered N316BS, operated by Avman Aviation Helicopter SVC, was involved in an accident near Vernal, Utah, United States. 3 people were on board and 3 had minor injuries. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 21:45
- Classification
- Accident
- Location
- Vernal, Utah, United States
- Coordinates
- 40.5506, -109.5693
- Aircraft
- Aerospatiale SA316B
- Registration
- N316BS
- Category
- Helicopter
- Engines
- 1
- Operator
- Avman Aviation Helicopter SVC
- Operating rule
- Part 135: Air Taxi & Commuter
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA91LA028
People
3 people had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 3 | 0 | 0 | 3 | 0 |
Probable cause
A MALFUNCTION/FAILURE OF THE HELICOPTER'S MAIN ROTOR LEAD-LAG DAMPER.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE ACFT DEVELOPED VIBRATIONS IN FLT WITH SEVERE FEEDBACK THROUGH THE CONTROL SYSTEM TO THE CYCLIC STICK. THE PILOT INITIATED AN EMERGENCY LANDING AND LOST CONTROL JUST BEFORE TOUCHDOWN. THE ACFT IMPACTED THE GROUND WHILE SPINNING AND ROLLED OVER. EVIDENCE INDICATED A MALFUNCTION/FAILURE OF A MAIN ROTOR DAMPER.
Quoted verbatim from the NTSB record.
Other Aerospatiale SA316B accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 20 Aug 1990 | Aerospatiale SA316B | Meeteetse, Wyoming, United States | Rocky Mountain Helicopter | Serious injuries | - |
| 28 Nov 1989 | Aerospatiale SA316B | Park City, Utah, United States | - | Fatal | 1 |
| 2 Apr 1988 | Aerospatiale SA316B | Silver Plume, Colorado, United States | - | No injuries | - |
| 4 Jul 1993 | Aerospatiale SA316B | Snyder, Texas, United States | Geo-Seis Helicopters, Inc | Serious injuries | - |
| 19 Jul 1987 | Aerospatiale SA316B | Red Lodge, Montana, United States | Pegasus Helicopters, Inc. | No injuries | - |
| 1 Apr 1993 | Aerospatiale SA316B | Aspen, Colorado, United States | Sea Pacific, Inc. | Fatal | 3 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 4 Apr 1990 | Schweizer SGS 2-33A | Morgan, Utah, United States | - | No injuries | - |
| 13 Mar 1990 | Cessna 172XP | Hurricane, Utah, United States | Mark/Lavinia Besolo | No injuries | - |
| 23 Apr 1990 | Piper PA-28-181 | Bountiful, Utah, United States | Stead, Robert T. | Minor injuries | - |
| 20 May 1990 | Cessna 205 | Bluff, Utah, United States | - | No injuries | - |
| 19 May 1990 | Cessna 152 | Delta, Utah, United States | Central Utah Aviation | Minor injuries | - |
| 26 May 1990 | Luscombe 8F | Morgan, Utah, United States | Douglas H. Harris | No injuries | - |