Individually Owned: 151,845
Corporate Owned: 143,699
Aircraft Accident/Incident Report
Oak City, Utah 84649
Sunday, November 11, 1984 8:45 MST
NTSB Narrative Summary Released at Completion of Accident
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.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Incident |
| Event Date | 11/11/1984 |
| Event Day of the Week | Sunday |
| Time of Event | 845 |
| Event Time Zone | Mountain Standard Time |
| Event City | OAK CITY |
| Event State | UTAH |
| Event Country | -- |
| Zipcode of the event site | 84649 |
| Event Date Year | 1984 |
| Event Date Month | 11 |
| MidAir Collision Indicator | Yes |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | |
| Event Location Nearest Airport ID | |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 0 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Pilot |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 40 |
| Air Temperature at event time (in degrees celsius) | 0 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | Light and Variable |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | 4 |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 5092 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Nov 11 1984 12:00AM |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 26963 |
| Date of most recent change to record | Jan 2 2001 9:15AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | N5785V | N9362 |
| NTSB Number | DEN85IA025A | DEN85IA025B |
| Missing Aircraft Indicator | N | N |
| Federal Aviation Reg. Part | Part 133: Rotorcraft Ext. Load | Part 133: Rotorcraft Ext. Load |
| Type of Flight Plan filed | None | None |
| Flight plan Was Activated? | -- | -- |
| Damage | Minor | Minor |
| Aircraft Fire | None | None |
| Aircraft Explosion | None | None |
| Aircraft Manufacturer's Full Name | AEROSPATIALE | AEROSPATIALE |
| Aircraft Model | SA315B (LAMA) | SA-316 ALOUETTE |
| Aircraft Series Identifier | SA315B (LA | SA-316 ALO |
| Aircraft Serial Number | 3617 | 1739 |
| Certified Max Gross Weight | 4300 | 4960 |
| Aircraft Category | Helicopter | Helicopter |
| Aircraft Registration Class | U.S. Registered/U.S. Soil | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No | No |
| Flight Crew Seats | -- | -- |
| Cabin Crew Seats | -- | -- |
| Passenger Seats | -- | -- |
| Total number of seats on the aircraft | 5 | 7 |
| Number of Engines | 1 | 1 |
| Fixed gear or retractable gear | Fixed | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour | AAIP |
| Date of Last Inspection | Oct 31 1984 12:00AM | Nov 7 1984 12:00AM |
| Airframe hours since last inspection | 505 | -- |
| Airframe Hours | 14161 | 3398 |
| ELT Installed | Yes | Yes |
| ELT Activated | No | No |
| ELT Aided Location of Event Site | No | No |
| ELT Type | -- | -- |
| Aircraft Owner Name | AERO SYSTEMS | ROCKY MOUNTAIN HELICOPTERS,INC |
| Aircraft Owner Street Address | 210 SUNNYVALE LANE | P.O. BOX 1337 |
| Aircraft Owner City | KALISPELL | PROVO |
| Aircraft Owner State | MT | UT |
| Aircraft Owner Country | ||
| Aircraft Owner Zipcode | 59901 | 86404 |
| Operator is an individual? | -- | -- |
| Operator Name | ||
| Operator Same as Owner? | Yes | Yes |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | Yes | Yes |
| Operator Street Address | ||
| Operator City | ||
| Operator State | ||
| Operator Country | ||
| Operator Zip code | ||
| Operator Code | ||
| Owner has at least one certificate | Yes - certificate holder | Yes - certificate holder |
| Other Operator of large aircraft? | No | No |
| Certified for Part 133 or 137 Operation | External Load | External Load |
| Operator Certificate Number | -- | -- |
| Indicates whether an air carrier operation was scheduled or not | Unknown | Unknown |
| Indicates Domestic or International Flight | Unknown | Unknown |
| Operator carrying Pax/Cargo/Mail | Unknown | Unknown |
| Type of Flying (Per_Bus / Primary) | Unknown | Unknown |
| Second Pilot on Board | No | No |
| Departure Point Same as Event | Yes | Yes |
| Departure Airport Code | ||
| Departure City | OAK CITY | OAK CITY |
| Departure State | UT | UT |
| Departure Country | ||
| Departure Time | 840 | 1845 |
| Departure Time Zone | MST | MST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere | dest & departure same, accident can occur anywhere |
| Destination Airport Code | ||
| Destination City | ||
| Destination State | ||
| Destination Country | ||
| Specific Phase of Flight | Cruise | Climb |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Jan 2 2001 10:36AM | Jan 2 2001 10:36AM |
| User who most recently changed record | dbo | dbo |
| Since inspection or accident | -- | -- |
| Event Location Runway Number and Location | 0 | 0 |
| Runway Length | 0 | 0 |
| Runway Width | 0 | 0 |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |