Aircraft Accident/Incident Report

Durango, Colorado 81301
Saturday, July 5, 2003 14:00 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot said he was climbing through 8,500 feet when the engine began to shake violently. He reduced power to idle and eventually shut the engine down. When the propeller stopped, he noticed one-half inch of one blade's trailing edge had separated. After dropping full flaps, the pilot attempted to make a forced landing on a dirt road but overshot. The airplane collided with two trees next to the road. A wood propeller manufacturer examined the propeller and found no defects or other damage to the propeller.

NTSB Probable Cause Narrative

partial propeller blade separation for reasons undetermined, and the pilot's misjudgment of distance and altitude during the forced landing approach that resulted in his overshooting the road on intended landing and colliding with trees. A contributing factor was the trees.

Event Information

Type of Event Accident
Event Date 7/5/2003
Event Day of the Week Saturday
Time of Event 1400
Event Time Zone Mountain Daylight Time
Event City Durango
Event State COLORADO
Event Country --
Zipcode of the event site 81301
Event Date Year 2003
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 371212N
Event Location Longitude 1075202W
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 Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1353 Mountain Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID DRO
Elevation of weather observation facility 6684
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation MDT
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) 34
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 11
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 15
Altimeter Setting at event time (in. Hg) 30.14
Density Altitude (feet) 10307
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) 14581
NTSB Notification Source FAA COMM CTR
NTSB Notification Date Jul 5 2003 12:00AM
NTSB Notification Time 1445
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 30 2003 8:55AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Salt Lake City FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N78DR
NTSB Number DEN03LA120
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 Conn
Aircraft Model Vans RV-4
Aircraft Series Identifier --
Aircraft Serial Number 859
Certified Max Gross Weight 1500
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 Conditional
Date of Last Inspection Apr 27 2003 12:00AM
Airframe hours since last inspection 23
Airframe Hours 1406
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Larry D. Miller
Aircraft Owner Street Address On File
Aircraft Owner City Albuquerque
Aircraft Owner State NM
Aircraft Owner Country USA
Aircraft Owner Zipcode 87123
Operator is an individual? Yes
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 00C
Departure City Durango
Departure State CO
Departure Country USA
Departure Time 1330
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code E98
Destination City Los Lunas
Destination State NM
Destination Country USA
Specific Phase of Flight Descent - emergency
Report sent to ICAO? No
Evacuation occurred --
Date of most recent change to record Oct 30 2003 3:19PM
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 --