Indian Creek (Usfs) Airport
Aircraft Accident/Incident Report

Stibnite, Idaho 83677
Saturday, August 30, 1986 11:50 MDT

NTSB Narrative Summary Released at Completion of Accident

AFTER TAKING OFF IN MOUNTAINOUS TERRAIN, THE PILOT PREMATURELY TURNED ON COURSE TO A NORTHERLY HEADING, INTENDING TO CROSS OVER A RIDGE LINE. SHORTLY AFTER THE TURN, AND WHILE FLYING UP A DRAINAGE AREA TOWARDS RISING TERRAIN, HE ENCOUNTERED A DOWNDRAFT CONDITION WHICH REDUCED THE AIRCRAFT'S CLIMB PERFORMANCE. ITS CLIMB PERFORMANCE HAD ALREADY BEEN AGGRAVATED BY HIGHER THAN USUAL DENSITY ALTITUDE CONDITIONS. SUBSEQUENTLY, THE AIRCRAFT COLLIDED WITH TREES WHILE THE PILOT WAS ATTEMPTING TO REVERSE COURSE.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/30/1986
Event Day of the Week Saturday
Time of Event 1150
Event Time Zone Mountain Daylight Time
Event City STIBNITE
Event State IDAHO
Event Country --
Zipcode of the event site 83677
Event Date Year 1986
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport INDIAN CREEK (USFS)
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 Weather Observation Facility
Time of the weather observation 1150 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 45
Weather Observation Facility ID SMN
Elevation of weather observation facility 4045
Distance of event from weather observation facility (units?) 55
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 5000
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) 25
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 13
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 6300
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious 3
Injury Total All 5
Investigating Agency NTSB
NTSB Docket Number (internal use) 1268
NTSB Notification Source --
NTSB Notification Date Aug 30 1986 12:00AM
NTSB Notification Time 1700
Fiche Number and/or location -used to find docket information 31662
Date of most recent change to record Jan 2 2001 9:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8778X
NTSB Number SEA86LA235
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 182D
Aircraft Series Identifier 182D
Aircraft Serial Number 18253178
Certified Max Gross Weight 2650
Aircraft Category Airplane
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 3 1986 12:00AM
Airframe hours since last inspection 11
Airframe Hours 3002
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name K & C FLYING
Aircraft Owner Street Address 130 NORTH 13TH EAST STREET
Aircraft Owner City MOUNTAIN HOME
Aircraft Owner State ID
Aircraft Owner Country
Aircraft Owner Zipcode 83647
Operator is an individual? --
Operator Name ALAN T. BERMENSOLO
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P. O. BOX 856
Operator City MOUNTAIN HOME
Operator State ID
Operator Country
Operator Zip code 83647
Operator Code
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code S81
Departure City
Departure State
Departure Country
Departure Time 1145
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code U79
Destination City CHAMBERLAIN BAS
Destination State ID
Destination Country
Specific Phase of Flight Maneuvering
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 4
Runway Length 5000
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --