GENERAL INFORMATION FOR NTSB REPORT: ANC00LA026
Data Source |
NTSB AVIATION ACCIDENT/INCIDENT DATABASE |
NTSB Report Nbr |
ANC00LA026 |
Event Id |
20001212X20439 |
Local Date |
02/08/2000 |
Local Time |
1300 |
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) |
1500 |
Cloud Type |
OVERCAST |
Visibility RVR (ft) |
0 |
Visibility RVV (sm) |
0 |
Visibility (sm) |
7 |
Wind Direction (deg) |
0 |
Wind Condition Flag |
U |
Wind Speed (knots) |
0 |
Wind Condition Indicated |
Calm |
AIRCRAFT INFORMATION
Aircraft 1
Type of Operation |
PART 91: GENERAL AVIATION |
Registration Number |
N4961A |
Aircraft Make |
CESSNA |
Aircraft Model |
180 |
Aircraft Series |
UNDESIGNATED SERIES |
Aircraft Damage |
SUBSTANTIAL |
Aircraft Fire |
NONE |
Aircraft Explosion |
NONE |
Aircraft Type |
AIRPLANE |
Aircraft Homebuilt |
UNKNOWN |
Phase of Flight |
UNDEFINED |
Aircraft Use |
PERSONAL |
Flight Plan Filed |
NONE |
Operator Name |
|
Operator Doing Business As |
|
Owner Name |
WENDELL K. ELLIS |
Number of Seats |
4 |
Number of Engines |
1 |
ELT Installed |
YES |
ELT Operated |
NO |
Departure Airport Id |
75Z |
Departure City |
NABESNA |
Departure State |
ALASKA |
Last Departure Point |
NO |
Destination Airport Id |
MRI |
Destination City |
ANCHORAGE |
Destination State |
ALASKA |
Runway Id |
0 |
Air Carrier Operating Certificates |
NO |
Air Carrier Other Operating Certificates |
UNKNOWN |
Rotocraft/Agriculture Operating Certificate |
UNKNOWN |
Cert Max Gross Wgt |
2550 |
ENGINE INFORMATION
Aircraft 1 - Engine : #1
Engine Manufactuer
| Continental |
Engine Model
| O-470-K |
Engine Horsepower
| 230 |
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 ON GROUND/WATER ENCOUNTER WITH TERRAIN/WATER
Phase of Operation: LANDING - ROLL
Events Sequence for Occurrence #1 of Aircraft 1
Event Seq # |
Event Group Code |
Subject |
Modifier |
Personnel |
Cause/Factor |
1 |
1 |
TERRAIN CONDITION |
SNOW COVERED |
|
|
2 |
1 |
TERRAIN CONDITION |
SNOWBANK |
|
FACTOR |
3 |
2 |
UNSUITABLE TERRAIN OR TAKEOFF/LANDING/TAXI AREA |
SELECTED |
PILOT IN COMMAND |
CAUSE |
Occurrence #2 NOSE OVER
Phase of Operation: LANDING - ROLL
Events Sequence for Occurrence #2 of Aircraft 1
Event Seq # |
Event Group Code |
Subject |
Modifier |
Personnel |
Cause/Factor |
AIRCRAFT 1 PRELIMINARY REPORT
On February 8, 2000, about 1300 Alaska standard time, a ski-equipped Cessna 180 airplane, N4961A, sustained substantial damage while landing at Caribou Lake, about 30 miles west-southwest of Glennallen, Alaska. The solo commercial pilot was not injured. The 14 CFR Part 91 personal flight departed Nabesna, Alaska, about 1130, and was en route to Anchorage, Alaska. The flight operated in visual meteorological conditions without a formal flight plan.
During a telephone conversation with the NTSB investigator-in-charge (IIC) about 45 minutes after the accident, the pilot related he made an intermediate stop at Caribou Lake to wait out deteriorating weather conditions. During the landing roll, the left main landing gear ski encountered deep, drifted snow, and the airplane turned to the left, nosed over, and received substantial damage to the left wing, vertical stabilizer, and rudder. The pilot reported there were no preaccident mechanical problems with the airplane, and that he just didn't see the drifted snow in time to avoid it.
AIRCRAFT 1 FINAL REPORT
The pilot reported he was landing his ski-equipped airplane on a frozen, snow-covered lake to await improved weather conditions. During the landing roll, he said he did not see an area of drifted snow. The left main landing gear ski encountered the snow drift, and the airplane turned to the left and nosed over, sustaining substantial damage.
AIRCRAFT 1 CAUSE REPORT
The pilot's selection of an unsuitable landing site on a frozen, snow-covered lake. A factor associated with the accident was an area of drifted snow at the landing site.
END REPORT