Martin Field Airport
Aircraft Accident/Incident Report

College Place, Washington 99362
Thursday, April 1, 2004 11:38 PST

NTSB Narrative Summary Released at Completion of Accident

The pilot of the homebuilt RV-8F departed runway 23 executing a climbing right turn, followed by a second RV-8F about 300 feet behind. As the second aircraft climbed through 300-400 feet above ground the pilot observed the first aircraft roll wings level and commence a descent while simultaneously turning back toward the departure airport and then impacting the ground in a wings level flat pitch attitude. The aircraft slid about 25-30 feet across the ground along a 200 degree magnetic track and its "G" meter registered +10 G's. Post crash examination of the aircraft's Franklin engine, the throttle system and engine fuel pump and boost pump revealed no evidence of mechanical or fuel related malfunction. Fuel was found in both fuel tanks and throughout the fuel lines up to the engine.

NTSB Probable Cause Narrative

A loss of engine power for undetermined reason(s) and the pilot's failure to maintain adequate flying airspeed during the forced landing. A contributing factor was the pilot's decision to attempt a turn at low altitude.

Event Information

Type of Event Accident
Event Date 4/1/2004
Event Day of the Week Thursday
Time of Event 1138
Event Time Zone Pacific Standard Time
Event City College Place
Event State WASHINGTON
Event Country --
Zipcode of the event site 99362
Event Date Year 2004
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 460248N
Event Location Longitude 1182506W
Event Location Airport Martin Field
Event Location Nearest Airport ID S95
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 750
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1153 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 43
Weather Observation Facility ID ALW
Elevation of weather observation facility 1205
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation PDT
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) 12
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 230
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.25
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 16426
NTSB Notification Source FAA SEA ROC
NTSB Notification Date Apr 1 2004 12:00AM
NTSB Notification Time 1306
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Sep 29 2004 1:02PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Spokane FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N284DM
NTSB Number SEA04LA062
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 Davenport (Van's)
Aircraft Model RV-8F
Aircraft Series Identifier --
Aircraft Serial Number 80955
Certified Max Gross Weight 1800
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 Jun 10 2003 12:00AM
Airframe hours since last inspection 100
Airframe Hours 100
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Davenport, David M.
Aircraft Owner Street Address --
Aircraft Owner City Milton-Freewater
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97862
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Walla Walla
Operator State WA
Operator Country USA
Operator Zip code 99362
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 Yes
Departure Airport Code S95
Departure City College Place
Departure State WA
Departure Country USA
Departure Time 1135
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code ALW
Destination City Walla Walla
Destination State WA
Destination Country USA
Specific Phase of Flight Takeoff - initial climb
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Aug 5 2004 2:05PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location 23
Runway Length 3840
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --