Aircraft Accident/Incident Report

Tyonek, Alaska 99682
Tuesady, July 29, 2003 15:00 AKD

NTSB Narrative Summary Released at Completion of Accident

The solo private pilot was practicing touch-and-go landings on a remote lake in a float-equipped airplane. During the accident landing, the airplane veered left, the left float submerged, the left wing struck the water, and the airplane nosed down and sank. The airplane sustained structural damage to the wings, fuselage, and empennage. According to the pilot, there were no preaccident mechanical anomalies with the airplane.

NTSB Probable Cause Narrative

The pilot's failure to maintain directional control during the landing roll, which resulted in a swerve and nose down.

Event Information

Type of Event Accident
Event Date 7/29/2003
Event Day of the Week Tuesday
Time of Event 1500
Event Time Zone --
Event City Tyonek
Event State ALASKA
Event Country --
Zipcode of the event site 99682
Event Date Year 2003
Event Date Month 7
MidAir Collision Indicator --
On Ground Collision occurred ? --
Event Location Latitude 610000N
Event Location Longitude 1512600W
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 Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
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 --
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) 50
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 15046
NTSB Notification Source ANC FAA, ROC
NTSB Notification Date Jul 30 2003 12:00AM
NTSB Notification Time 700
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 30 2004 8:14AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Anchorage FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N913SM
NTSB Number ANC03LA086
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 Cessna
Aircraft Model 185
Aircraft Series Identifier --
Aircraft Serial Number 185-0091
Certified Max Gross Weight 3200
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
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 Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 12 2003 12:00AM
Airframe hours since last inspection 70
Airframe Hours 4170
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Osprey Air LLC
Aircraft Owner Street Address 3613 Hartford Avenue
Aircraft Owner City Butte
Aircraft Owner State MT
Aircraft Owner Country USA
Aircraft Owner Zipcode 59701
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 No
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Tyonek
Departure State AK
Departure Country USA
Departure Time 1430
Departure Time Zone ADT
Destination Same as Local Flt crash at destination city
Destination Airport Code --
Destination City Tyonek
Destination State AK
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Feb 11 2004 2:19PM
User who most recently changed record PETL
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 --