# NTSB DEN82FTM13: Aerospatiale 315B, N8237, Coalville, UT, June 3, 1982

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: June 3, 1982, 12:15 local (18:15 UTC)
- Place: Coalville, UT
- Location: 40.9074° N, 111.4212° W: Placed by OpenAirDocs: center of Coalville, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.9074&lon=-111.4212&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report June 3, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70294
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN82FTM13
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70294/pdf
- Page: https://openairdocs.org/ntsb/DEN82FTM13

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power, maneuvering
  - reason for occurrence undetermined (cause)
- In flight collision with terrain/water, maneuvering

## Analysis

DURING A SEISMIC EXPLORATION FLIGHT THE ENG QUIT. NO ENG MALFUNCTION WAS FOUND.

## Aircraft

- Registration: [N8237](https://openairdocs.org/deregistered/N8237-2013-09-17), registration cancelled 2013-09-17, S/N 2308, built 1972 (OpenAirDocs)
- Reported make and model: AEROSPATIALE 315B
- Registry model: [Aerospatiale SA315B](https://openairdocs.org/model/aerospatiale-sa315b) (registry code 8680615) (OpenAirDocs)
- Registry engine: [Turbomeca ARTOUSTEIIIB](https://openairdocs.org/engine/turbomeca-artousteiiib) (registry code 60003, turbo-shaft) (OpenAirDocs)
- Category: Helicopter
- Serial number: 2308
- Airframe hours: 6768
- Engines: TURBOMECA ARTOUSTE IIIB 858 horsepower turbo shaft
- Damage: Substantial damage
- Flight: Part 133
- Operator: Rocky Mt. Heli
- Registered owner: Rocky Mt. Heli
- Departed: COALVILLE, UT
- Destination: COALVILLE, UT

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; commercial; instrument ratings: helicopter; medical: class 2, valid medical--no waivers/lim.; flight hours: 5,190 total, 1,100 in this make and model, 182 in the last 90 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 5 knots
- Visibility: 25 statute miles
- Temperature: 158 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19820603021059A](https://openairdocs.org/incident/19820603021059A), Jun 3, 1982: Aerosp SA315B, Coalville, UT, Substantial damage. RPM decayed while maneuvering a sling load. Crashed on a hillside. No engine problem. Governor,fuel control suspected.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.