Aircraft Accident/Incident Report

Canby, Oregon 97031
Saturday, August 21, 2010 11:45 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that he was in cruise flight when the engine began to run rough and lose power. Shortly thereafter, the engine lost total power and the pilot maneuvered the airplane to a nearby field to perform a forced landing. Just before touchdown, the airplane collided with a barbed wire fence and subsequently landed hard. Examination and disassembly of the 2-cylinder engine revealed that the right and left cylinder intake valves were not properly seating with the cylinder heads when the valves were in the closed position. The pilot reported this condition would likely cause low cylinder compression and a loss of engine power. No other anomalies were noted with the engine.

NTSB Probable Cause Narrative

The loss of engine power due to low cylinder compression.

Event Information

Type of Event Accident
Event Date 8/21/2010
Event Day of the Week Saturday
Time of Event 1145
Event Time Zone Pacific Daylight Time
Event City Canby
Event State OREGON
Event Country --
Zipcode of the event site 97031
Event Date Year 2010
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 451227N
Event Location Longitude 1224009W
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 Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
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) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29061
NTSB Notification Source FAA SEA ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 7 2011 3:49PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N524DF
NTSB Number WPR10LA419
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name HUMMEL / FINBERG
Aircraft Model ULTRA CRUISER
Aircraft Series Identifier --
Aircraft Serial Number 71
Certified Max Gross Weight 550
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Apr 15 2010 12:00AM
Airframe hours since last inspection --
Airframe Hours 64
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name FINBERG KENNETH DALE
Aircraft Owner Street Address --
Aircraft Owner City SALEM
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97302-5002
Operator is an individual? No
Operator Name FINBERG KENNETH DALE
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City SALEM
Operator State OR
Operator Country USA
Operator Zip code 97302-5002
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 4S9
Departure City Mulino
Departure State OR
Departure Country USA
Departure Time 1140
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code --
Destination City Hubbard
Destination State OR
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 7 2011 3:46PM
User who most recently changed record stam
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --