Aircraft Accident/Incident Report

New Market, Minnesota 55054
Sunday, July 23, 2006 20:15 CDT

NTSB Narrative Summary Released at Completion of Accident

The floatplane impacted terrain during a forced landing following a loss of engine power during cruise. Examination of the engine revealed that several of the crankshaft and camshaft gear teeth were broken off. The surface separations of the teeth exhibited features consistent with fatigue.

NTSB Probable Cause Narrative

A loss of engine power due to the fatigue fracture of the crankshaft and camshaft gear teeth during cruise flight and the unsuitable landing area encountered by the pilot during the forced landing.

Event Information

Type of Event Accident
Event Date 7/23/2006
Event Day of the Week Sunday
Time of Event 2015
Event Time Zone Central Daylight Time
Event City New Market
Event State MINNESOTA
Event Country --
Zipcode of the event site 55054
Event Date Year 2006
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
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 2055 Central Daylight Time
Direction of event from weather observation facility (degrees) 45
Weather Observation Facility ID LVN
Elevation of weather observation facility 960
Distance of event from weather observation facility (units?) 7
Time Zone of the weather observation CDT
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) 26
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 170
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.76
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 22867
NTSB Notification Source FAA
NTSB Notification Date Jul 24 2006 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jan 30 2008 4:08PM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Minneapolis FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7012H
NTSB Number CHI06LA211
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model J3C-65
Aircraft Series Identifier --
Aircraft Serial Number 20257
Certified Max Gross Weight 1220
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 1 2006 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Pilot
Aircraft Owner Street Address --
Aircraft Owner City Prior Lake
Aircraft Owner State MN
Aircraft Owner Country USA
Aircraft Owner Zipcode --
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 No
Departure Airport Code --
Departure City Prior Lake
Departure State MN
Departure Country USA
Departure Time 1945
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Unknown
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 19 2007 12:13PM
User who most recently changed record DINC
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --