Aircraft Accident/Incident Report

Knoxville, Tennessee 37830
Saturday, June 6, 2009 17:44 EDT

NTSB Narrative Summary Released at Completion of Accident

The pilot was providing rides to passengers in an amateur-built seaplane, and following a previous uneventful local flight with another passenger, the pilot returned, landed, and the accident passenger boarded. The final moments of the accident flight were captured on video by pleasure boaters. The airplane overflew the boat at a low altitude, then entered a steep bank, descended steeply, and impacted the water. Examination of the wreckage revealed no evidence of any preimpact mechanical malfunctions or failures of the engine or flight controls. According to the experimental seaplane’s kit manufacturer, when equipped with a 100 horsepower engine and loaded with 2 occupants, the stall speed in level flight was 40 miles per hour.

NTSB Probable Cause Narrative

The pilot's failure to maintain adequate airspeed, resulting in an aerodynamic stall and uncontrolled descent.

Event Information

Type of Event Accident
Event Date 6/6/2009
Event Day of the Week Saturday
Time of Event 1744
Event Time Zone Eastern Daylight Time
Event City Knoxville
Event State TENNESSEE
Event Country --
Zipcode of the event site 37830
Event Date Year 2009
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 355544N
Event Location Longitude 0841529W
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 Weather Observation Facility
Time of the weather observation 1753 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 115
Weather Observation Facility ID TYS
Elevation of weather observation facility 981
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 4800
Sky/Lowest/Cloud Conditions Few
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) 26
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 10
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.96
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) 27436
NTSB Notification Source FAA Southern ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Sep 9 2010 3:34PM
User who most recently changed record kenj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N169GW
NTSB Number ERA09LA325
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 SMITH BRET B
Aircraft Model SEAREY
Aircraft Series Identifier --
Aircraft Serial Number 1DK184
Certified Max Gross Weight 1370
Aircraft Category Airplane
Aircraft Registration Class --
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name SMITH BRET B
Aircraft Owner Street Address --
Aircraft Owner City CUMBERLAND
Aircraft Owner State RI
Aircraft Owner Country USA
Aircraft Owner Zipcode 02864-1420
Operator is an individual? Yes
Operator Name SMITH BRET B
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City CUMBERLAND
Operator State RI
Operator Country USA
Operator Zip code 02864-1420
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 Yes
Departure Airport Code NONE
Departure City Knoxville
Departure State TN
Departure Country USA
Departure Time --
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code NONE
Destination City Knoxville
Destination State TN
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 9 2010 3:34PM
User who most recently changed record kenj
Since inspection or accident --
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --