Dillingham Airport
Aircraft Accident/Incident Report

Dillingham, Alaska 99576
Sunday, August 21, 2011 9:10 AKD

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that, just prior to the accident landing, he had parked the amphibious airplane on a beach where, unknown to him, the left main landing gear wheel brake had apparently captured a small rock in the brake system. On landing at the destination airport, the left brake locked and the airplane departed the left side of the runway, colliding with terrain and sustaining substantial damage to the left wing. A Federal Aviation Administration inspector who went to the accident site confirmed that a small rock was found wedged in the left brake assembly.

NTSB Probable Cause Narrative

A loss of directional control during landing due to a rock lodged in the main landing gear wheel brake, resulting in a runway excursion and collision with terrain.

Event Information

Type of Event Accident
Event Date 8/21/2011
Event Day of the Week Sunday
Time of Event 910
Event Time Zone --
Event City Dillingham
Event State ALASKA
Event Country --
Zipcode of the event site 99576
Event Date Year 2011
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 590241N
Event Location Longitude 1583020W
Event Location Airport Dillingham
Event Location Nearest Airport ID PADL
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Witness
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 8000
Lowest Non-Ceiling Height 6000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 11
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) 230
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) 29.26
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 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 28967
NTSB Notification Source FAA Anchorage, ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 3 2011 6:07PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N139F
NTSB Number ANC11LA084
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name GRUMMAN
Aircraft Model G-44
Aircraft Series Identifier --
Aircraft Serial Number 1375
Certified Max Gross Weight 5400
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 5
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection May 18 2011 12:00AM
Airframe hours since last inspection --
Airframe Hours 4090
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C91-A
Aircraft Owner Name Widgeon Enterprises LLC
Aircraft Owner Street Address --
Aircraft Owner City KENT
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode 98042
Operator is an individual? No
Operator Name FRESH WATER ADVENTURES INC
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Dillingham
Operator State AK
Operator Country USA
Operator Zip code 99576
Operator Code BPMC
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number BPMC382T
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code --
Departure City Nerka Lake
Departure State AK
Departure Country USA
Departure Time 850
Departure Time Zone ADT
Destination Same as Local Flt crash at destination city
Destination Airport Code PADL
Destination City Dillingham
Destination State AK
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 3 2011 6:07PM
User who most recently changed record stam
Since inspection or accident Time of Accident
Event Location Runway Number and Location 19
Runway Length 6400
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --