Lamar Municipal Airport
Aircraft Accident/Incident Report

Lamar, Colorado 81052
Sunday, March 24, 2002 15:00 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot obtained a weather briefing for an IFR flight. The briefer informed the pilot of IFR conditions along the route of flight and an airmet for icing conditions in the northern 1/3 of the state of Colorado; however, the route of flight was not within the airmet's boundaries. The pilot then filed an IFR flight plan. The flight departed and climbed to a cruising altitude of 9,000 feet. The pilot stated that the airplane was in IMC when he observed that the airplane's groundspeed was less than he expected, and that the outside air temperature was slightly below freezing. He contacted air traffic control (ATC), requested a descent to 7,000 feet, and initiated a descent. Rime ice began to accumulate on the airplane's windshield, wings, and vertical stabilizer. The flight continued and was 25-30 miles past the nearest airport when the pilot advised ATC that the airplane could not maintain altitude due to icing. ATC recommended that the pilot reverse course and divert to the airport. The pilot then turned back toward the airport. The pilot stated that the airplane remained in a shallow descent; however, he was able to maintain 80 mph airspeed. The flight broke out of the cloud layer at 4,500 feet. The pilot's outside view was obstructed by the ice covered windshield, except for a 6-inch radius semi-circle that was cleared by the airplane's windshield defroster. The flight continued toward the airport; however, it encountered rising terrain, and subsequently, the airplane impacted the ground.

NTSB Probable Cause Narrative

the pilot's delay in taking immediate remedial action after the flight encountered icing conditions, which resulted in a collision with terrain. A contributing factor to the accident was the icing condition.

Event Information

Type of Event Accident
Event Date 3/24/2002
Event Day of the Week Sunday
Time of Event 1500
Event Time Zone Mountain Standard Time
Event City Lamar
Event State COLORADO
Event Country --
Zipcode of the event site 81052
Event Date Year 2002
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Lamar Municipal
Event Location Nearest Airport ID LAA
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 135
Airport Elevation 3706
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1453 Mountain Standard Time
Direction of event from weather observation facility (degrees) 315
Weather Observation Facility ID LAA
Elevation of weather observation facility 3706
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 2200
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 0
Dew Point at event time (in degress fahrenheit) -4
Wind Direction (degrees magnetic) 40
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 14
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29.84
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 13477
NTSB Notification Source FAA
NTSB Notification Date Mar 25 2002 12:00AM
NTSB Notification Time 730
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record May 30 2003 9:51AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Denver, Colorado

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9265L
NTSB Number FTW02LA101
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 Grumman
Aircraft Model AA-5
Aircraft Series Identifier --
Aircraft Serial Number AA5-0250
Certified Max Gross Weight 2200
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 Sep 27 2001 12:00AM
Airframe hours since last inspection 10
Airframe Hours 3164
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Edward A. Wenninger
Aircraft Owner Street Address 4449 N. Rsuhwood Court
Aircraft Owner City Wichita
Aircraft Owner State KS
Aircraft Owner Country USA
Aircraft Owner Zipcode 67226
Operator is an individual? No
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? --
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 APA
Departure City Denver
Departure State CO
Departure Country USA
Departure Time 1230
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code GCK
Destination City Garden City
Destination State KS
Destination Country USA
Specific Phase of Flight Descent - emergency
Report sent to ICAO? No
Evacuation occurred Yes
Date of most recent change to record Jul 19 2002 4:53PM
User who most recently changed record SNYG
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --