Aircraft Accident/Incident Report

Georgetown, Colorado 80444
Tuesady, August 8, 1989 9:10 MDT

NTSB Narrative Summary Released at Completion of Accident

THE COMMERCIAL PLT WAS FLYING A CAMERAMAN, WHO WAS FILMING A HIKER AT AN ELEVATION OF ABOUT 13,000 FT IN MOUNTAINOUS TERRAIN. THE PLT REPORTED THAT THE WIND WAS FROM 280 DEG AT 15, GUSTING TO 25 KNOTS. AFTER TURNING DOWNWIND, THE HELICOPTER BEGAN AN UNCOMMANDED RIGHT YAW. THE PLT SAID THAT FULL LEFT PEDAL FAILED TO STOP THE TURN AND HE ATTEMPTED TO LAND. THE HELICOPTER TOUCHED DOWN IN A RIGHT YAW AND THE SKIDS COLLAPSED. SUBSEQUENTLY, THE MAIN ROTOR STRUCK THE GROUND AND THE TAIL ROTOR AND BOTH GEAR BOXES WERE DAMAGED.

NTSB Probable Cause Narrative

IMPROPER INFLIGHT PLANNING/DECISION BY THE PILOT. THE HIGH DENSITY ALTITUDE, TAIL WIND, GUSTS, AND TERRAIN WERE RELATED FACTORS.

Event Information

Type of Event Accident
Event Date 8/8/1989
Event Day of the Week Tuesday
Time of Event 910
Event Time Zone Mountain Daylight Time
Event City GEORGETOWN
Event State COLORADO
Event Country --
Zipcode of the event site 80444
Event Date Year 1989
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 NONE
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 0
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 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 40
Air Temperature at event time (in degrees celsius) 4
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 25
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 14600
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 1
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1341
NTSB Notification Source --
NTSB Notification Date Aug 8 1989 12:00AM
NTSB Notification Time 938
Fiche Number and/or location -used to find docket information 39528
Date of most recent change to record Dec 13 2000 12:57PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N12DY
NTSB Number DEN89LA189
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 206B
Aircraft Series Identifier 206B
Aircraft Serial Number 1900
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 22 1989 12:00AM
Airframe hours since last inspection 62
Airframe Hours 6549
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DR. JAMES W LANGLEY
Aircraft Owner Street Address 9002 EASTRIDGE ROAD
Aircraft Owner City GOLDEN
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 80403
Operator is an individual? --
Operator Name PTARMIGAN HELICOPTERS
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1553 SNYDER GULCH ROAD
Operator City EVERGREEN
Operator State CO
Operator Country
Operator Zip code 80439
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code NONE
Departure City EVERGREEN
Departure State CO
Departure Country
Departure Time 845
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code NONE
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
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 --