Aircraft Accident/Incident Report

Stanwood, Washington 98292
Thursday, April 20, 1989 9:30 PDT

NTSB Narrative Summary Released at Completion of Accident

DURING FLIGHT, THERE WAS A LOSS OF POWER FROM ONE OF THE CYLINDERS OF THE AIRCRAFT'S TWO CYLINDER ENGINE. WITH INSUFFICIENT POWER TO CONTINUE FLIGHT, THE PILOT TRIED TO LAND IN A SOD FIELD. HOWEVER, THE AIRCRAFT TOUCHED DOWN IN A PLOWED FIELD, SHORT OF THE INTENDED LANDING AREA, AND NOSED OVER. THE PILOT BELIEVED THAT ONE OF THE SPARK PLUG LEADS MAY HAVE BECOME DISCONNECTED.

NTSB Probable Cause Narrative

AN IGNITION LEAD BECAME DISCONNECTED FROM ONE CYLINDER, WHICH RESULTED IN A PARTIAL POWER LOSS. A FACTOR RELATED TO THE ACCIDENT WAS: SOFT TERRAIN IN THE TOUCHDOWN AREA.

Event Information

Type of Event Accident
Event Date 4/20/1989
Event Day of the Week Thursday
Time of Event 930
Event Time Zone Pacific Daylight Time
Event City STANWOOD
Event State WASHINGTON
Event Country --
Zipcode of the event site 98292
Event Date Year 1989
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
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 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 135
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 20
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 126
NTSB Notification Source --
NTSB Notification Date Apr 20 1989 12:00AM
NTSB Notification Time 1330
Fiche Number and/or location -used to find docket information 38319
Date of most recent change to record Dec 13 2000 12:37PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4409D
NTSB Number SEA89LA073
Missing Aircraft Indicator N
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 DONNER/PARTON
Aircraft Model AVID FLYER
Aircraft Series Identifier AVID FLYER
Aircraft Serial Number 13
Certified Max Gross Weight 764
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 Dec 3 1988 12:00AM
Airframe hours since last inspection 9
Airframe Hours 97
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name TERRY L BOTTERON
Aircraft Owner Street Address 13241 SE 43RD ST
Aircraft Owner City BELLEVUE
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 98006
Operator is an individual? --
Operator Name TERRY L. BOTTERON
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 13241 SE 43RD ST
Operator City BELLVUE
Operator State WA
Operator Country
Operator Zip code 98006
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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 S88
Departure City ARLINGTON
Departure State WA
Departure Country
Departure Time 930
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --