Aircraft Accident/Incident Report

Atlanta, Idaho 83601
Saturday, September 14, 1985 12:15 MDT

NTSB Narrative Summary Released at Completion of Accident

A LOSS OF PWR OCCURRED SHORTLY BEFORE TOUCHDOWN. THE LEFT SKID STRUCK A ROCK DURING TOUCHDOWN CAUSING THE ACFT TO ROLL ONTO ITS RIGHT SIDE. TWENTY-FIVE FLT HRS PRIOR TO THIS FLT AN IDENTICAL SITUATION OCCURRED AND A LOOSE AIR LINE TO THE FUEL CONTROL WAS FOUND. ALTHOUGH NO SPECIFIC REASON COULD BE DETERMINED FOR THIS LOSS OF PWR, A SPLIT 'O' RING TO THE GOVERNOR OF THE PY ORIFICE WAS DISCOVERED WHICH COULD ACCOUNT FOR THE PARTIAL PWR LOSS.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/14/1985
Event Day of the Week Saturday
Time of Event 1215
Event Time Zone Mountain Daylight Time
Event City ATLANTA
Event State IDAHO
Event Country --
Zipcode of the event site 83601
Event Date Year 1985
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 Pilot
Time of the weather observation 1215
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 10000
Lowest Non-Ceiling Height 10000
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 10
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 9200
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 4
Injury Total None --
Injury Total Serious --
Injury Total All 4
Investigating Agency NTSB
NTSB Docket Number (internal use) 1815
NTSB Notification Source --
NTSB Notification Date Sep 16 1985 12:00AM
NTSB Notification Time 800
Fiche Number and/or location -used to find docket information 29196
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 Registration Number N58012
NTSB Number SEA85LA214
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 206BII
Aircraft Series Identifier 206BII
Aircraft Serial Number 1027
Certified Max Gross Weight 3200
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
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 100 Hour
Date of Last Inspection Jan 1 1985 12:00AM
Airframe hours since last inspection 36
Airframe Hours 4942
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name IDAHO HELICOPTERS
Aircraft Owner Street Address 2471 COMMERCIAL AVENUE
Aircraft Owner City BOISE
Aircraft Owner State ID
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation External Load
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger/Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 52U
Departure City ATLANTA
Departure State ID
Departure Country
Departure Time 1200
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
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 --