Aircraft Accident/Incident Report

Kassan, Alaska 99950
Tuesady, June 20, 1989 20:00 AKD

NTSB Narrative Summary Released at Completion of Accident

AFTER DROPPING OFF EQUIPMENT AT A LAKESIDE CABIN, THE PILOT BEGAN TAXIING THE FLOATPLANE ON WATER IN GUSTY DOWNWIND CONDITIONS IN PREPARATION FOR TAKEOFF FROM THE LAKE. WHILE FAST TAXIING (ON THE STEP), HE NOTICED THE GUSTY WIND CONDITIONS AND RETARDED THE THROTTLE. THE AIRCRAFT NOSED OVER AND CAME TO REST INVERTED IN WATER.

NTSB Probable Cause Narrative

THE EXCESSIVE TAXI SPEED USED BY THE PILOT IN THE EXISTING WEATHER CONDITIONS. CONTRIBUTING TO THE ACCIDENT WAS THE GUSTY TAILWIND.

Event Information

Type of Event Accident
Event Date 6/20/1989
Event Day of the Week Tuesday
Time of Event 2000
Event Time Zone --
Event City KASSAN
Event State ALASKA
Event Country --
Zipcode of the event site 99950
Event Date Year 1989
Event Date Month 6
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 --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 0 Atlantic Daylight Time
Direction of event from weather observation facility (degrees) 95
Weather Observation Facility ID KTN
Elevation of weather observation facility 88
Distance of event from weather observation facility (units?) 40
Time Zone of the weather observation ADT
Lighting Conditions Day
Lowest Ceiling Height 8000
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) 35
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Unknown
Wind Speed (knots) 16
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 50
Intensity of Precipitation Light
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 2118
NTSB Notification Source --
NTSB Notification Date Jun 21 1989 12:00AM
NTSB Notification Time 1005
Fiche Number and/or location -used to find docket information 41615
Date of most recent change to record Dec 13 2000 12:47PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N46DG
NTSB Number SEA89LA124
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name de Havilland
Aircraft Model DHC-2
Aircraft Series Identifier DHC-2
Aircraft Serial Number 340
Certified Max Gross Weight 5090
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 8
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name KETCHIKAN AIR SERVIC, INC
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1600 KETCHIKAN INT. AIRPORT
Operator City KETCHIKAN
Operator State AK
Operator Country
Operator Zip code 99901
Operator Code 65
Owner has at least one certificate Yes - certificate holder
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) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City KASSAN
Departure State AK
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code KTN
Destination City KETCHIKAN
Destination State AK
Destination Country
Specific Phase of Flight Taxi
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --