Aircraft Accident/Incident Report

Near Kemmerer, Wyoming 83101
Wednesday, September 15, 1982 12:15 MDT

NTSB Narrative Summary Released at Completion of Accident

WHILE HOVERING WITH AN EXTERNAL LOAD A LOUD BANG WAS HEARD AND THE HELICOPTER STARTED TO YAW. THE PILOT DROPPED THE EXTERNAL LOAD, PULLED COLLECTIVE, CENTERED CYCLIC AND STARTED DESCENT. THE MAIN ROTORS HIT TREES AND THE AIRCRAFT FELL TO THE GROUND. EXAMINATION OF THE ENGINE AND OTHER COMPONENTS DID NOT REVEAL ANY REASON FOR ENGINE FAILURE.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/15/1982
Event Day of the Week Wednesday
Time of Event 1215
Event Time Zone Mountain Daylight Time
Event City NEAR KEMMERER
Event State WYOMING
Event Country --
Zipcode of the event site 83101
Event Date Year 1982
Event Date Month 9
MidAir Collision Indicator No
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 Unknown
Time of the weather observation 1200
Direction of event from weather observation facility (degrees) 100
Weather Observation Facility ID RKS
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 98
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 1000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 54
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 170
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2598
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information
Date of most recent change to record Oct 31 2002 4:04PM
User who most recently changed record NTSB\ZUZL
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7915
NTSB Number DEN82DA195
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 133: Rotorcraft Ext. Load
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AEROSPATIALE
Aircraft Model SA315B
Aircraft Series Identifier SA315B
Aircraft Serial Number 2296
Certified Max Gross Weight 4960
Aircraft Category Helicopter
Aircraft Registration Class Unknown
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 90
Airframe Hours 7575
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ROCKY MOUNTAIN HELICOPTERS, IN
Aircraft Owner Street Address P.O. BOX 1337
Aircraft Owner City PROVO
Aircraft Owner State UT
Aircraft Owner Country
Aircraft Owner Zipcode 84601
Operator is an individual? --
Operator Name ROCKY MOUNTAIN HELICOPTERS, IN
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address P.O. BOX 1337
Operator City PROVO
Operator State UT
Operator Country
Operator Zip code 84601
Operator Code
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City LAKE VIVA NAUGH
Departure State WY
Departure Country
Departure Time 1200
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code
Destination City DRILLING SITE
Destination State WY
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 18 2002 4:50PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --