GENERAL INFORMATION FOR NTSB REPORT: ANC00LA091
Data Source NTSB AVIATION ACCIDENT/INCIDENT DATABASE
NTSB Report Nbr ANC00LA091
Event Id 20001212X21358
Local Date 07/17/2000
Local Time 845
State AK
Event Type ACCIDENT
Injury Severity NONE
Record Status
Mid Air Collision NO
Event Location OFF AIRPORT/AIRSTRIP

WEATHER INFORMATION
Weather Briefing Complete UNKNOWN
Basic Weather Conditions VISUAL METEOROLOGICAL COND
Light Condition DAY
Cloud Condition UNKNOWN
Cloud Height above Ground Level (ft) 0
Ceiling Height above Ground Level (ft) 2000
Cloud Type BROKEN
Visibility RVR (ft) 0
Visibility RVV (sm) 0
Visibility (sm) 10
Wind Direction (deg) 140
Wind Condition Flag U
Wind Speed (knots) 8
Wind Condition Indicated Unknown

AIRCRAFT INFORMATION
Aircraft 1
Type of Operation PART 91: GENERAL AVIATION
Registration Number N345KA
Aircraft Make DE HAVILLAND
Aircraft Model DHC2
Aircraft Series UNDESIGNATED SERIES
Aircraft Damage SUBSTANTIAL
Aircraft Fire NONE
Aircraft Explosion NONE
Aircraft Type AIRPLANE
Aircraft Homebuilt UNKNOWN
Phase of Flight TAKEOFF
Aircraft Use POSITIONING
Flight Plan Filed COMPANY VFR
Operator Name KETCHUM AIR SERVICE INC
Operator Doing Business As
Owner Name KETCHUM AIR LEASING, INC.
Number of Seats 7
Number of Engines 1
ELT Installed YES
ELT Operated UNKNOWN
Departure Airport Id
Departure City
Last Departure Point YES
Destination Airport Id LHD
Destination City ANCHORAGE
Destination State ALASKA
Runway Id 0
Air Carrier Operating Certificates YES
Air Carrier Other Operating Certificates UNKNOWN
Rotocraft/Agriculture Operating Certificate UNKNOWN
Cert Max Gross Wgt 5500

ENGINE INFORMATION

Aircraft 1 - Engine : #1
Engine Manufactuer P&W
Engine Model R-985
Engine Horsepower 450
Engine Thrust HP
Carb/Injection CARBURETOR

INJURY INFORMATION
Injury Summary for Aircraft 1
Fatal Serious Minor None
Crew 0 0 0 0
Pass 0 0 0 0
Total 0 0 0 1
Sequence of Events for Aircraft 1
Occurrence #1
LOSS OF CONTROL - ON GROUND/WATER
Phase of Operation: TAKEOFF - ROLL/RUN

Events Sequence for Occurrence #1 of Aircraft 1
Event Seq # Event Group Code Subject Modifier Personnel Cause/Factor
1 1 TERRAIN CONDITION WATER
2 1 WEATHER CONDITION CROSSWIND FACTOR
3 2 COMPENSATION FOR WIND CONDITIONS INADEQUATE PILOT IN COMMAND CAUSE

Occurrence #2
ON GROUND/WATER COLLISION WITH OBJECT
Phase of Operation: TAKEOFF - ROLL/RUN

Events Sequence for Occurrence #2 of Aircraft 1
Event Seq # Event Group Code Subject Modifier Personnel Cause/Factor
4 1 OBJECT TREE(S)




AIRCRAFT 1 PRELIMINARY REPORT


On July 17, 2000, about 0845 Alaska daylight time, a float equipped DeHavilland DHC-2 airplane, N345KA, sustained substantial damage during takeoff when it collided with a tree on Alexander Creek, about 15 miles west of Big Lake, Alaska, at 61 degrees, 36 minutes north latitude, 150 degrees, 40 minutes west longitude. The solo airline transport pilot was not injured. The positioning flight was being conducted under 14 CFR Part 91, by Ketchum Air Service, Inc., Anchorage, Alaska. The flight was returning to Lake Hood Seaplane Base, Anchorage, after dropping passengers at the company lodge on Alexander Creek. Visual meteorological conditions prevailed at the time of the accident, and a company VFR flight plan was filed. During a telephone interview with the NTSB investigator-in-charge on July 20, the pilot stated he lost directional control of the airplane during the initial takeoff run. He indicated the airplane was just coming up on step, and he was taking off upstream, with an eight knot quartering tailwind from the left. He said the airplane swerved left, and the left wing struck a tree on the river bank. Postaccident inspection of the airplane by the NTSB investigator-in-charge on July 18, revealed the first rib inboard of the landing light was crushed aft to the left wing main spar.

AIRCRAFT 1 FINAL REPORT


The pilot stated he lost directional control of the float equipped airplane during the initial takeoff run. He indicated the airplane was just coming up on step, and he was taking off upstream, with an eight knot quartering tailwind from the left. He said the airplane swerved left, and the left wing struck a tree on the river bank.

AIRCRAFT 1 CAUSE REPORT


The pilot's inadequate compensation for the wind conditions. A factor associated with the accident was a crosswind.


END REPORT