Aircraft Accident/Incident Report

Lutsen, Minnesota 55612
Saturday, July 22, 2006 14:00 CDT

NTSB Narrative Summary Released at Completion of Accident

The amphibian airplane sustained substantial damage during takeoff when its float encountered a wave. The pilot stated, "As airspeed increased, the aircraft encountered slightly larger waves and as airspeed approached rotation speed, began hitting the crests of the waves. Just before rotation, a snap was heard and takeoff was immediately aborted. As the aircraft quickly decelerated, the front pilot side float strut pierced through the fuselage by pilot rudder pedals and the whole float assembly collapsed."

NTSB Probable Cause Narrative

The unsuitable terrain the pilot encountered during takeoff in rough water. A factor was the wave in the rough water.

Event Information

Type of Event Accident
Event Date 7/22/2006
Event Day of the Week Saturday
Time of Event 1400
Event Time Zone Central Daylight Time
Event City Lutsen
Event State MINNESOTA
Event Country --
Zipcode of the event site 55612
Event Date Year 2006
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 474859N
Event Location Longitude 0902300W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
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
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID CKC
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 6000
Sky/Lowest/Cloud Conditions Scattered
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) 20
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30.09
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KCKC 221855Z AUTO 15007KT 109V189 10SM SCT060 20/0
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 20544
NTSB Notification Source FAA
NTSB Notification Date Jul 22 2006 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Oct 31 2006 8:45AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Minneapolis, MN, FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N52728
NTSB Number CHI06CA197
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 206H
Aircraft Series Identifier --
Aircraft Serial Number 20608185
Certified Max Gross Weight 3792
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 1 2005 12:00AM
Airframe hours since last inspection --
Airframe Hours 565
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name WEIDENDORF INVESTMENTS LLC
Aircraft Owner Street Address 2273 NAPLES ST
Aircraft Owner City Mora
Aircraft Owner State MN
Aircraft Owner Country USA
Aircraft Owner Zipcode 55051
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) Personal
Second Pilot on Board --
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Lutsen
Departure State MN
Departure Country USA
Departure Time 1345
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code --
Destination City Ontario
Destination State --
Destination Country CA
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 18 2006 4:39PM
User who most recently changed record DINC
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 --