Platte Valley Airpark Airport
Aircraft Accident/Incident Report

Hudson, Colorado 80642
Thursday, March 1, 2001 15:50 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot had just taken off and was climbing at 80 percent power (5,000 rpm) when he noticed the EGT rising "into redline 1,625 degrees F." He leveled off, reduced power to 4,800 rpm, and reduced propeller pitch. EGT stopped rising and came down slightly, but was still above redline. All other engine indications were normal. EGT continued to rise and the engine started losing power and was "running rough." The pilot tried to land at a nearby airport, but was forced to make a landing in an open field. He said he flared at the the last moment and hit the ground sharply. The nose wheel broke off when it struck a tire track and the airplane nosed over. The pilot, who also built the airplane, suspected detonation caused the rise in EGT.

NTSB Probable Cause Narrative

the loss of engine power as a result of detonation. A contributing factor was the unsuitable terrain on which to make a forced landing.

Event Information

Type of Event Accident
Event Date 3/1/2001
Event Day of the Week Thursday
Time of Event 1550
Event Time Zone Mountain Standard Time
Event City Hudson
Event State COLORADO
Event Country --
Zipcode of the event site 80642
Event Date Year 2001
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Platte Valley Airpark
Event Location Nearest Airport ID 18V
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 2
Degrees magnetic from airport 315
Airport Elevation 4965
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1555 Mountain Standard Time
Direction of event from weather observation facility (degrees) 355
Weather Observation Facility ID GXY
Elevation of weather observation facility 4658
Distance of event from weather observation facility (units?) 26
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 10
Dew Point at event time (in degress fahrenheit) -5
Wind Direction (degrees magnetic) 10
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 17
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 24
Altimeter Setting at event time (in. Hg) 29.79
Density Altitude (feet) 5315
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 10231
NTSB Notification Source FAA NW ROC
NTSB Notification Date Mar 1 2001 12:00AM
NTSB Notification Time 1729
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jul 30 2001 11:11AM
User who most recently changed record MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Denver FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4386W
NTSB Number DEN01LA059
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Meshko Zenair
Aircraft Model CH-701
Aircraft Series Identifier --
Aircraft Serial Number 001
Certified Max Gross Weight 1328
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 11 2001 12:00AM
Airframe hours since last inspection 4
Airframe Hours 56
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name George M. Meshko
Aircraft Owner Street Address --
Aircraft Owner City Denver
Aircraft Owner State CO
Aircraft Owner Country USA
Aircraft Owner Zipcode 80202
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 GXY
Departure City Greeley
Departure State CO
Departure Country USA
Departure Time 1530
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code 48V
Destination City Erie
Destination State CO
Destination Country USA
Specific Phase of Flight Emergency landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Apr 26 2001 11:32AM
User who most recently changed record MCBM
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 --