Aircraft Accident/Incident Report

Bryant, Washington 98223
Saturday, November 30, 2002 10:45 PST

NTSB Narrative Summary Released at Completion of Accident

The 1,570 hour pilot/builder, along with a 9,000 hour commercial pilot (who had 150 hours experience in the make/model), departed in the homebuilt Seawind 3000 amphibious aircraft on a test flight after a little more than 12 hours of test flying. After approximately 30 minutes witnesses observed the aircraft go from a climb into a descending spiral. One witness reported that he heard the engine quit while others described varying engine sounds characteristic of decaying or intermittent power. One witness observed the aircraft's wings rocking about the longitudinal axis and 3/4 through the third spiral the nose dropped. The aircraft impacted the ground in a near vertical attitude with minimal evidence of horizontal motion through the heavily wooded terrain of the crash site. A post-crash fire consumed most of the aircraft. On site examination found no evidence of mechanical malfunction with the aircraft's controls and an engine disassembly and examination revealed the same findings for the powerplant. Propeller slash marks along the side of one of the trees at the ground impact site suggested a minimum of 1000 RPM an instant before ground impact. The center of gravity was estimated to be within limits at the time of the accident and the stall speed of the aircraft was reported as 64 knots (clean).

NTSB Probable Cause Narrative

A loss of engine power for undetermined reasons and the failure of the flying pilot to maintain flying speed resulting in an inadvertent stall, loss of control and subsequent collision with terrain.

Event Information

Type of Event Accident
Event Date 11/30/2002
Event Day of the Week Saturday
Time of Event 1045
Event Time Zone Pacific Standard Time
Event City Bryant
Event State WASHINGTON
Event Country --
Zipcode of the event site 98223
Event Date Year 2002
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 481629N
Event Location Longitude 1220655W
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1035 Pacific Standard Time
Direction of event from weather observation facility (degrees) 165
Weather Observation Facility ID AWO
Elevation of weather observation facility 137
Distance of event from weather observation facility (units?) 7
Time Zone of the weather observation PST
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) 4
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.16
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 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 14494
NTSB Notification Source FAA SEA ROC
NTSB Notification Date Nov 30 2002 12:00AM
NTSB Notification Time 1100
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Nov 25 2003 11:36AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Seattle FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N313FC
NTSB Number SEA03FA015
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name Caron
Aircraft Model Seawind
Aircraft Series Identifier --
Aircraft Serial Number 057
Certified Max Gross Weight 3400
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Nov 8 2002 12:00AM
Airframe hours since last inspection 16
Airframe Hours 16
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Caron, Frederic J.
Aircraft Owner Street Address --
Aircraft Owner City Cave Junction
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97523
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) Flight Test
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code PAE
Departure City Everett
Departure State WA
Departure Country USA
Departure Time 1014
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code PAE
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Descent - uncontrolled
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Jul 31 2003 1:25PM
User who most recently changed record STAM
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 --