GENERAL INFORMATION FOR NTSB REPORT: ANC00LA025
Data Source NTSB AVIATION ACCIDENT/INCIDENT DATABASE
NTSB Report Nbr ANC00LA025
Event Id 20001212X20438
Local Date 02/07/2000
Local Time 1800
State AK
Airport Name TULUKSAK
Event Type ACCIDENT
Injury Severity NONE
Record Status
Mid Air Collision NO
Event Location ON AIRPORT/AIRSTRIP

WEATHER INFORMATION
Weather Briefing Complete UNKNOWN
Basic Weather Conditions VISUAL METEOROLOGICAL COND
Light Condition DUSK
Cloud Condition CLEAR
Cloud Height above Ground Level (ft) 0
Ceiling Height above Ground Level (ft) 0
Cloud Type NONE
Visibility RVR (ft) 0
Visibility RVV (sm) 0
Visibility (sm) 20
Wind Direction (deg) 0
Wind Condition Flag U
Wind Speed (knots) 0
Wind Condition Indicated Calm

AIRCRAFT INFORMATION
Aircraft 1
Type of Operation PART 135: AIR TAXI & COMMUTER
Registration Number N327CT
Aircraft Make CESSNA
Aircraft Model 207
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 UNKNOWN
Category of Operation SCHEDULED
Flight Plan Filed COMPANY VFR
Domestic/International DOMESTIC
Passenger/Cargo PASSENGER/CARGO
Operator Name HAGELAND AVIATION SERVICES INC
Operator Doing Business As
Owner Name GUSSIC VENTURES
Number of Seats 7
Number of Engines 1
ELT Installed YES
ELT Operated UNKNOWN
Departure Airport Id Z13
Departure City AKIACHAK
Departure State ALASKA
Last Departure Point NO
Destination Airport Id BET
Destination City BETHEL
Destination State ALASKA
Runway Id 20
Runway Length 2500
Runway Width 30
Air Carrier Operating Certificates YES
Air Carrier Other Operating Certificates UNKNOWN
Rotocraft/Agriculture Operating Certificate UNKNOWN
Cert Max Gross Wgt 3800

ENGINE INFORMATION

Aircraft 1 - Engine : #1
Engine Manufactuer Continental
Engine Model IO-520-F27B
Engine Horsepower 300
Engine Thrust HP
Carb/Injection FUEL INJECTED

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 5
Sequence of Events for Aircraft 1
Occurrence #1
ON GROUND/WATER ENCOUNTER WITH TERRAIN/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 AIRPORT FACILITIES, RUNWAY/LANDING AREA CONDITION SNOW COVERED
2 1 AIRPORT FACILITIES, RUNWAY/LANDING AREA CONDITION SOFT FACTOR

Occurrence #2
LOSS OF CONTROL - ON GROUND/WATER
Phase of Operation: TAKEOFF - ROLL/RUN

Events Sequence for Occurrence #2 of Aircraft 1
Event Seq # Event Group Code Subject Modifier Personnel Cause/Factor
3 2 PROPER ALIGNMENT NOT MAINTAINED PILOT IN COMMAND CAUSE

Occurrence #3
NOSE OVER
Phase of Operation: TAKEOFF - ABORTED

Events Sequence for Occurrence #3 of Aircraft 1
Event Seq # Event Group Code Subject Modifier Personnel Cause/Factor




AIRCRAFT 1 PRELIMINARY REPORT


On February 7, 2000, about 1800 Alaska standard time, a wheel equipped Cessna 207 airplane, N327CT, operated as scheduled commuter Flight 71 by Hageland Aviation, Bethel, Alaska, sustained substantial damage during a takeoff attempt from the Tuluksak Airport, Tuluksak, Alaska. The commercial certificated pilot and the four passengers aboard reported no injuries. The flight was en route to Bethel. Visual meteorological conditions prevailed, and a company flight plan was in effect. During a telephone conversation with the NTSB investigator-in-charge on February 8, the pilot related that he began a takeoff from the north ramp area onto runway 20. He said the 2,500 feet long by 30 feet wide runway was plowed to the edges, and the edges were marked with cones. He noted there were berms outside of, and up to, the cones, and that in some areas, clumps of snow were visible on the runway from where snow machines had crossed. The pilot related that about 60 knots indicated airspeed, just prior to rotation, the airplane veered suddenly to the left. He said he pulled the throttle to idle, and attempted to correct to the right. He was unable to recover control of the airplane prior to the left wingtip striking a berm on the left edge of the runway. The airplane continued towards the berm, and nosed over. The pilot indicated the airplane's landing gear may have encountered either soft snow on the runway, or a mound of snow or ice, which pulled the airplane to the left. The pilot said the wind was calm, and the skies clear. He said it was difficult to distinguish objects or terrain features due to the flat light, and the lack of contrast between the runway and surrounding snow-covered terrain. Postaccident inspection of the airplane disclosed no evidence of any preimpact mechanical anomalies.

AIRCRAFT 1 FINAL REPORT


The scheduled commuter flight with a pilot and four passengers was attempting to takeoff at dusk from a 2500 feet long, by 30 feet wide, snow-covered runway. The pilot reported that during the takeoff roll, the airplane veered suddenly to the left, towards the edge of the runway and an adjacent snow berm. He said he aborted the takeoff, but could not keep the airplane from striking a berm and nosing over. The pilot said he believes the airplane's main landing gear may have encountered an area of soft snow on the runway, which initiated the veer to the left. Postaccident inspection discovered no preimpact mechanical anomalies with the airplane.

AIRCRAFT 1 CAUSE REPORT


The pilot's failure to maintain proper alignment during the takeoff roll. A factor associated with the accident was a soft area of snow on the runway.


END REPORT