- Date
- November 11, 1984, 08:45 local (15:45 UTC)
- Place
- Oak City, UT
- Injuries
- 1 minor, 4 uninjured
- Phase of flight
- Enroute
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA reports
- 19841111075701I19841111075702I
- Case key
- 16579
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
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
Both acft were performing external load operations. N5785V was in level flt to the north. N9362 was in a 60-70 kt slight climb to the southeast. Neither plt, both in rt seats, saw the other acft before contact. Three main rotor blades of N5785V passed through the upper left section of the cockpit of N9362. The incident occurred while the acft were converging at a 45 deg angle. The sun was rising in the east, the terrain was snow covered & both acft were painted white. Each plt broadcasted his position & destination before lifting off, but neither received any response. Neither made any further transmissions after taking off.
Both acft performing external load operations. N5785V was in level flt to the north. N9362 was in a 60-70 kt slight climb to the southeast. Neither plt, both in rt seats, saw the other acft before contact. 3 main rotor blades of N5785V passed through upper left section of cockpit on N9362. Incident occurred with acft converging at a 45 deg angle. Sun was rising in east, terrain was snow covered and both acft were painted white. Each plt broadcasted his position & destination before lifting off, but neither received a response. Neither made any further transmissions after takeoff.
Aircraft · 2
- Registration
- N5785V
- Reported as
- Aerospatiale SA315B (Lama) (SA315B (LA)
- Category
- Helicopter
- Serial number
- 3617
- Airframe hours
- 14,161
- Engine
- Turbomeca ARTOUSTE IIIB, 562 horsepower, turbo shaft
- Damage
- Minor damage
- Flight
- Part 133
- Registered owner
- Aero Systems
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · October 31, 1984 · 505 hours before
- Departed
- Oak City, UT
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.
- Registration
- N9362
- Reported as
- Aerospatiale SA-316 Alouette (SA-316 ALO)
- Category
- Helicopter
- Serial number
- 1739
- Airframe hours
- 3,398
- Engine
- Turbomeca ARTOUSTE IIIB, 562 horsepower, reciprocating
- Damage
- Minor damage
- Flight
- Part 133
- Registered owner
- Rocky Mountain Helicopters,Inc
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · November 7, 1984
- Departed
- Oak City, UT
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 · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot, aircraft N5785V
- Age
- 32
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 5,100 total · 500 in this make and model · 500 in the last 90 days
- Role
- Pilot, aircraft N9362
- Age
- 40
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Helicopter
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 8,098 total · 1,428 in this make and model · 7,898 as pilot in command · 241 in the last 90 days · 42 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 40 statute miles
- Lowest ceiling
- None
- Temperature
- 32 °F
- Altimeter
- 30.00 inHg
FAA reports on this event · 2
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N5785V · 1
Matched to the same aircraft by N-number and date.