NTSB Identification: DEN85IA025A.
The docket is stored on NTSB microfiche number 26963.
Incident occurred Sunday, November 11, 1984 in OAK CITY, UT
Aircraft: AEROSPATIALE SA315B (LAMA), registration: N5785V
Injuries: 1 Minor,4 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

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.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

VISUAL LOOKOUT..INADEQUATE..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

VISUAL LOOKOUT..INADEQUATE..PILOT OF OTHER AIRCRAFT


Contributing Factors

TERRAIN CONDITION..SNOW COVERED


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

LIGHT CONDITION..DAYLIGHT

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