Aerospatiale SA316B N9829C
22 March 1982 · Near Brideport, California, United States · Serious injuries
Summary
On 22 March 1982 at about 18:00 local time, a Aerospatiale SA316B registered N9829C, operated by Mammoth Heli-Ski Tioyabe Corp., was involved in an accident near Near Brideport, California, United States. 7 people were on board and 4 were seriously injured, 3 had minor injuries. The aircraft was destroyed. No probable cause statement is available for this record.
The record
- Date
- at 18:00
- Classification
- Accident
- Location
- Near Brideport, California, United States
- Coordinates
- 38.2694, -119.3301
- Aircraft
- Aerospatiale SA316B
- Registration
- N9829C
- Category
- Helicopter
- Engines
- 1
- Operator
- Mammoth Heli-Ski Tioyabe Corp.
- Operating rule
- Part 135: Air Taxi & Commuter
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Private Helipor → Victoria Peak
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX82FA117
People
4 people were seriously injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 7 | 0 | 4 | 3 | 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
AFTER TAKING OFF IN A MOUNTAINOUS AREA, THE PILOT BEGAN CLIMBING IN UP-CURRENTS ON THE SIDE OF A CANYON. WHILE FOLLOWING A RIDGE AT ABOUT 100 FT AGL (11,000 FT MSL), HE HEARD A LOUD NOISE THAT WAS FOLLOWED BY A SHUDDER AND VIBRATIONS. THE HELICOPTER BEGAN DESCENDING RAPIDLY. THE PILOT TURNED TOWARD THE RIDGE AND THE HELICOPTER IMPACTED IN A SNOWFIELD. AN EXAMINATION REVEALED THAT THE OIL FILTER COVER OF THE GEAR BOX HAD SEPARATED. A TAPERED PIN WHICH WAS USED TO SECURE THE COVER HAD SHEARED FROM OVERLOAD. A DISASSEMBLY OF THE MAIN TRANSMISSION REVEALED THAT THE LOWER PLANETARY GEAR HAD FAILED FROM OIL STARVATION. ONLY 20 MM OF OIL WAS FOUND IN THE BOTTOM OF THE TRANSMISSION CASE.
Quoted verbatim from the NTSB record.
Other Aerospatiale SA316B accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 8 Jul 1982 | Aerospatiale SA316B | Meeteetse, Wyoming, United States | Hawkins and Powers Helicopters | Serious injuries | - |
| 13 Nov 1982 | Aerospatiale SA316B | West Mifflin, Pennsylvania, United States | Life Flight, Allegheny General | No injuries | - |
| 3 Jun 1984 | Aerospatiale SA316B | Alcova, Wyoming, United States | Evergreen Helicopters Inc | No injuries | - |
| 26 Oct 1984 | Aerospatiale SA316B | Lima, Montana, United States | NOR West Helicopters, Inc. | Minor injuries | - |
| 13 Jun 1985 | Aerospatiale SA316B | Silver Springs, Florida, United States | Evergreen Helicoters | No injuries | - |
| 30 Jan 1985 | Aerospatiale SA316B | Galt, California, United States | - | Serious injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 30 Jan 1982 | Piper PA-28R-201T | Truckee, California, United States | Larry Laurich | No injuries | - |
| 1 Feb 1982 | Cessna 180K | El Cajon, California, United States | Hartley Warren | No injuries | - |
| 14 Jun 1982 | Cessna 182 | Truckee, California, United States | - | Fatal | 2 |
| 30 Jun 1982 | Cessna 205 | El Centro, California, United States | Thomas James Sullivan | Minor injuries | - |
| 31 May 1982 | Cessna 182 | Truckee, California, United States | Charlie Roeschen | Fatal | 1 |
| 6 Nov 1982 | Cessna 172 | Antioch, California, United States | Executive Air | No injuries | - |