Cabinet Gorge Reservoir Airport
Aircraft Accident/Incident Report

Heron, Montana 59844
Friday, June 3, 2011 14:20 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that from his airborne perspective, the river looked suitable for landing his float plane. He did not observe any sand bar or obstacles in the water. The pilot stated that his descent into the water was normal, and he landed with the current. Upon touchdown, the airplane which was only equipped with floats, immediately nosed over. It subsequently sank. The pilot said the front of the right float was ripped off in the landing, and the front windscreen broke open from the airframe. He opined that the floatplane impacted a submerged object. The pilot inflated his emergency flotation device and swam to shore.

NTSB Probable Cause Narrative

The floatplane's collision with a submerged object during a water landing.

Event Information

Type of Event Accident
Event Date 6/3/2011
Event Day of the Week Friday
Time of Event 1420
Event Time Zone Mountain Daylight Time
Event City Heron
Event State MONTANA
Event Country --
Zipcode of the event site 59844
Event Date Year 2011
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 480330N
Event Location Longitude 1155406W
Event Location Airport Cabinet Gorge Reservoir
Event Location Nearest Airport ID None
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 --
Airport Elevation 2200
Weather Briefing Completeness --
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 3000
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) 11
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 12
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.16
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) 28666
NTSB Notification Source NM ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 25 2011 2:34PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N316BR
NTSB Number WPR11CA249
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 Rusk
Aircraft Model Smith Super Cub
Aircraft Series Identifier --
Aircraft Serial Number 001
Certified Max Gross Weight 2300
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 Conditional
Date of Last Inspection Aug 31 2010 12:00AM
Airframe hours since last inspection 119
Airframe Hours 119
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type C91-A
Aircraft Owner Name Billy W. Rusk
Aircraft Owner Street Address --
Aircraft Owner City Poplar Grove
Aircraft Owner State IL
Aircraft Owner Country USA
Aircraft Owner Zipcode 61065
Operator is an individual? Yes
Operator Name Billy W. Rusk
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Poplar Grove
Operator State IL
Operator Country USA
Operator Zip code 61065
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 No
Departure Airport Code None
Departure City Seeley Lake
Departure State MT
Departure Country USA
Departure Time 1200
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code None
Destination City Spokane
Destination State WA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 8 2011 2:48PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location 29
Runway Length 12000
Runway Width 1500
Sight Seeing flight No
Air Medical Flight No
Medical Flight --