Aircraft Accident/Incident Report

Black Hawk, Colorado 80403
Thursday, May 8, 2008 15:45 MDT

NTSB Narrative Summary Released at Completion of Accident

The airplane entered clouds and snow showers while en route on an instrument flight plan. Temperatures compounded with relative humidity, placed the airplane in conditions favorable for structural and induction system icing. During the flight, the engine lost partial power and the pilot could not maintain level flight. During the descent, the engine was observed to lose and regain power. The pilot continued to manuever the airplane until it collided with terrain. An examination of the airframe and engine failed to reveal any anomalies which would have precluded the safe operation of the airframe or production of engine power.

NTSB Probable Cause Narrative

The loss of engine power due to induction icing. A contributing factor was the pilot's decision to continue flight in conditions favorable for structural and induction-system icing.

Event Information

Type of Event Accident
Event Date 5/8/2008
Event Day of the Week Thursday
Time of Event 1545
Event Time Zone Mountain Daylight Time
Event City Black Hawk
Event State COLORADO
Event Country --
Zipcode of the event site 80403
Event Date Year 2008
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 394944N
Event Location Longitude 1053616W
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1545 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 72
Weather Observation Facility ID BJC
Elevation of weather observation facility 5673
Distance of event from weather observation facility (units?) 24
Time Zone of the weather observation MDT
Lighting Conditions Not Reported
Lowest Ceiling Height 11000
Lowest Non-Ceiling Height 6000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) 15
Dew Point at event time (in degress fahrenheit) 5
Wind Direction (degrees magnetic) 350
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.78
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 24603
NTSB Notification Source Regional Operations Center
NTSB Notification Date May 8 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Nov 17 2008 11:01AM
User who most recently changed record aguj
Basic weather conditions Visual Meteorological Cond
FAA District Office Denver FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8553S
NTSB Number DFW08FA131
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 182
Aircraft Series Identifier H
Aircraft Serial Number 18256653
Certified Max Gross Weight 2800
Aircraft Category Airplane
Aircraft Registration Class --
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 Jun 13 2007 12:00AM
Airframe hours since last inspection 67.5
Airframe Hours 4652.9
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type C91
Aircraft Owner Name WINKMAGGAIR, LLC
Aircraft Owner Street Address 580 MAIN ST STE 300B
Aircraft Owner City CARBONDALE
Aircraft Owner State CO
Aircraft Owner Country USA
Aircraft Owner Zipcode 81623-2065
Operator is an individual? No
Operator Name WINKMAGGAIR, LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 580 MAIN ST STE 300B
Operator City CARBONDALE
Operator State CO
Operator Country USA
Operator Zip code 81623-2065
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
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 GWS
Departure City GLENWOOD SPRING
Departure State CO
Departure Country USA
Departure Time 1508
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code BDU
Destination City BOULDER
Destination State CO
Destination Country USA
Specific Phase of Flight Descent - emergency
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 12 2008 11:21AM
User who most recently changed record aguj
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --