Aircraft Accident/Incident Report

Gypsum, Colorado 81637
Tuesady, October 2, 1990 20:31 MDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT RECEIVED A WEATHER BRIEFING PRIOR TO FILING AN IFR FLIGHT PLAN. THUNDERSTORMS AND ICING CONDITIONS PREVAILED ALONG HIS INTENDED ROUTE. DURING THE FLIGHT ICE FORMED ON HIS AIRCRAFT IN THE VICINITY OF GYPSUM, COLORADO. THE FLIGHT CONTINUED AND EVENTUALLY THE PILOT WAS UNABLE TO MAINTAIN CONTROL OF THE AIRCRAFT. IT ENTERED INTO A SPIN WHICH CONTINUED UNTIL GROUND IMPACT.

NTSB Probable Cause Narrative

THE PILOT FLYING INTO KNOWN ADVERSE ICING AND THUNDERSTORM WEATHER CONDITIONS WHICH RESULTED IN THE LOSS OF CONTROL OF THE AIRCRAFT.

Event Information

Type of Event Accident
Event Date 10/2/1990
Event Day of the Week Tuesday
Time of Event 2031
Event Time Zone Mountain Daylight Time
Event City GYPSUM
Event State COLORADO
Event Country --
Zipcode of the event site 81637
Event Date Year 1990
Event Date Month 10
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 Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1950 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 126
Weather Observation Facility ID EGE
Elevation of weather observation facility 6538
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation MDT
Lighting Conditions Night/Dark
Lowest Ceiling Height 8000
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) 10
Air Temperature at event time (in degrees celsius) -18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
Intensity of Precipitation Heavy
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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2137
NTSB Notification Source --
NTSB Notification Date Oct 2 1990 12:00AM
NTSB Notification Time 2210
Fiche Number and/or location -used to find docket information 43583
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6477N
NTSB Number DEN91FA002
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR/IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model T210N
Aircraft Series Identifier T210N
Aircraft Serial Number 21063051
Certified Max Gross Weight 3800
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 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name DENVER AIR CENTER, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address BLDG B-3 JEFFERSON CO. ARPT
Operator City BROOMFIELD
Operator State CO
Operator Country
Operator Zip code 80021
Operator Code CIUA
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 No
Departure Airport Code SGU
Departure City ST. GEORGE
Departure State UT
Departure Country
Departure Time 1800
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code BJC
Destination City BROOMFIELD
Destination State CO
Destination Country
Specific Phase of Flight Cruise - normal
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 --