- Date
- July 10, 1988, 11:30 local (17:30 UTC)
- Place
- Dubois, WY
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N47274Aerospatiale SA-315B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 3, 1989
- Report
- Approved by Office Director
- FAA report
- 19880710026019A
- Case key
- 17380
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Loss of engine power(total) - mech failure/malf
Turboshaft engine,free(power) turbine - overtemperatureCause
Weather condition - high density altitudeFactor
Forced landing
Load jettison - performed
In flight collision with object
Autorotation - attempted
Altitude - inadequateFactor
Object - tree(s)
Aircraft
- Registration
- N47274
- Reported as
- Aerospatiale SA-315B
- Category
- Helicopter
- Serial number
- 2449
- Airframe hours
- 10,590
- Engine
- Turbomeca ARTOUSTE 3B, 562 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Other work use · Part 133
- Operator
- Rocky Mountain Helicopters,Inc
- Registered owner
- Rocky Mountain Helicopters Inc
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · April 15, 1988 · 98 hours before
- Departed
- U25
- Destination
- U25
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 43
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 10,890 total · 6,122 in this make and model · 10,890 as pilot in command · 290 in the last 90 days · 7 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 50 statute miles
- Lowest ceiling
- None
- Temperature
- 68 °F
- Altimeter
- 29.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.