Aircraft Accident/Incident Report

Snowpond,Sidney, Maine 04963
Sunday, July 21, 1985 14:30 EDT

NTSB Narrative Summary Released at Completion of Accident

ACCORDING TO THE PLT, THE ACFT WAS ON STEP AND IN INDICATING ABOUT 45 KTS AIRSPEED. IT THEN ENCOUNTERED A BOAT WAKE AND BEGAN FLYING. THE ACFT PORPOISED 2 OR 3 TIMES AND THEN COLLIDED WITH THE WATER IN AN ESTIMATED 10 TO 15 DEG NOSE DOWN ATTITUDE. THE PWR WAS OFF. DURING THE COLLISION, THE LEFT PONTOON BECAME DETACHED AND THE ACFT BEGAN TO FILL WITH WATER. THE ACFT SANK IN ABOUT 4 MINUTES ACCORDING TO THE PLT.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 7/21/1985
Event Day of the Week Sunday
Time of Event 1430
Event Time Zone Eastern Daylight Time
Event City SNOWPOND,SIDNEY
Event State MAINE
Event Country --
Zipcode of the event site 04963
Event Date Year 1985
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 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1300 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID AUG
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 4500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 897
NTSB Notification Source --
NTSB Notification Date Jul 21 1985 12:00AM
NTSB Notification Time 1638
Fiche Number and/or location -used to find docket information 28124
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6668L
NTSB Number NYC85LA188
Missing Aircraft Indicator N
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 LAKE
Aircraft Model LA-4
Aircraft Series Identifier LA-4
Aircraft Serial Number 431
Certified Max Gross Weight 2400
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 1 1985 12:00AM
Airframe hours since last inspection --
Airframe Hours 765
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name RICHARD T. DICK
Aircraft Owner Street Address RFD #1
Aircraft Owner City OAKLAND
Aircraft Owner State ME
Aircraft Owner Country
Aircraft Owner Zipcode 04963
Operator is an individual? --
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? No
Certified for Part 133 or 137 Operation Unknown
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
Departure State
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code
Destination City MOOSEHEAD LAKE
Destination State ME
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --