- Date
- March 7, 1986, 09:40 local (17:40 UTC)
- Place
- Siletz, OR
- Injuries
- 1 fatal
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N4966Aerospatiale SE 318C
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19860307005679A
- Case key
- 40274
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.
Analysis
The plt unsuccessfully attempted to lift a 1597 lb load of cedar blocks which would have placed the helicopter aprx 880 lbs over its max gross weight with an external load. The plt was setting the load down for ground personnel to unload some of the blocks when a loss of pwr occurred. The helicopter then descended to ground impact with the external load line still attached. Inspection revealed the eng sustained a compressor stall and the turbine section of the eng had been burned.
Aircraft
- Registration
- N4966
- Reported as
- Aerospatiale SE 318C
- Category
- Helicopter
- Serial number
- 2227
- Airframe hours
- 2,725
- Engine
- Astazou IIG, 523 horsepower, turbo shaft
- Damage
- Destroyed
- Flight
- Other work use · Part 133
- Operator
- Lorance E. Osborne, doing business as Golden Hawk Aviation
- Registered owner
- Mountainair Helicopters
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Unknown · March 6, 1986 · 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
- 44
- Certificate
- Commercial
- Instrument ratings
- Helicopter
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Center
- Toxicology
- Performed
- Flight hours
- 6,000 total · 50 in this make and model · 6,000 as pilot in command · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 5 statute miles
- Lowest ceiling
- 2,500 ft broken
- Temperature
- 50 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N4966 · 2
Matched to the same aircraft by N-number and date.