Aircraft Accident/Incident Report

Cheyenne, Wyoming 82001
Tuesady, August 6, 1985 13:00 MDT

NTSB Narrative Summary Released at Completion of Accident

THE FLT WAS A PIPELINE PATROL OPERATION. WHILE IN FLT, SMOKE WAS OBSERVED IN THE CABIN. THE PLT MADE AN UNSUCCESSFUL AUTOROTATION RESULTING IN SUBSTANTIAL DAMAGE TO THE HELICOPTER. INVESTIGATION REVEALED THE SMOKE WAS FROM AN INFLIGHT ENG COMPARTMENT FIRE. THERE WERE NO REPORTED INJURIES TO THE PLT AND HIS PAX.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/6/1985
Event Day of the Week Tuesday
Time of Event 1300
Event Time Zone Mountain Daylight Time
Event City CHEYENNE
Event State WYOMING
Event Country --
Zipcode of the event site 82001
Event Date Year 1985
Event Date Month 8
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 Weather Observation Facility
Time of the weather observation 1250 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 225
Weather Observation Facility ID CYS
Elevation of weather observation facility 6156
Distance of event from weather observation facility (units?) 19
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 60
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 11
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 9566
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 2718
NTSB Notification Source --
NTSB Notification Date Aug 6 1985 12:00AM
NTSB Notification Time 1540
Fiche Number and/or location -used to find docket information 30426
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 N8662F
NTSB Number DEN85LA210
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire In-flight
Aircraft Explosion None
Aircraft Manufacturer's Full Name HUGHES
Aircraft Model 369D
Aircraft Series Identifier 369D
Aircraft Serial Number 690530D
Certified Max Gross Weight 2100
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Aug 5 1985 12:00AM
Airframe hours since last inspection 4
Airframe Hours 1794
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DENVER HELICOPTERS, INC.
Aircraft Owner Street Address 1227 S. RACE STREET
Aircraft Owner City DENVER
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 80210
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 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) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code CYS
Departure City CHEYENNE
Departure State WY
Departure Country
Departure Time 1300
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code EAN
Destination City WHEATLAND
Destination State WY
Destination Country
Specific Phase of Flight Cruise
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 --