- Date
- April 13, 1992, 08:45 local (14:45 UTC)
- Place
- Magna, UT
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N315DYAerospatiale SA315B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report September 28, 1993
- Report
- Approved by Office Director
- FAA report
- 19920413009719A
- Case key
- 41656
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The overheat of the engine combustion section, and the failure of the turbine blades.
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.
Analysis
The pilot of the aerospatiale SA315B was attempting to lift an external load liquid dispensing bucket when he reached the main rotor pitch limit. He therefore reduced the collective, and at the same moment experienced a total loss of power. The aircraft then settled onto the bucket it had been attempting to lift, and eventually rolled over and contacted the ground. Investigation revealed that, for undetermined reasons, the engine had experienced an over temperature condition, which caused the turbine blades to fail.
Aircraft
- Registration
- N315DY
- Reported as
- Aerospatiale SA315B
- Category
- Helicopter
- Serial number
- 2622
- Airframe hours
- 3,973
- Engine
- Turbomeca ARTOUSTE IIIB, 858 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Other work use · Part 133
- Operator
- Rocky Mountain Helicopters Inc
- Registered owner
- Bayside Partners
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · April 10, 1992 · 1 hours before
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
- Instrument ratings
- Helicopter
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 9,106 total · 3,842 in this make and model · 9,106 as pilot in command · 84 in the last 90 days · 35 in the last 30 days · 0.1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 180° at 5 knots
- Visibility
- 20 statute miles
- Lowest ceiling
- None
- Temperature
- 64 °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.