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 |
FINAL |
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