NTSB Identification: ANC83LA048.
The docket is stored on NTSB microfiche number 21721.
Accident occurred Friday, February 25, 1983 in NUIQSUT, AK
Aircraft: DOUGLAS DC-6A, registration: N6587C
Injuries: 3 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE CAPTAIN REPORTED THAT THE ACFT MOVED FASTER AT IDLE PWR BECAUSE THE CARGO HAD BEEN OFFLOADED. WHEN HE CHECKED THE BRAKES HALFWAY DOWN THE TAXIWAY HE FOUND THAT THE BRAKES WOULD NOT SLOW THE ACFT ON GLARE ICE AND SNOW. THE FLT ENGINEER BEGAN REVERSING THE PROPELLERS. APPROACHING THE RUNWAY THE ACFT BEGAN TO TURN UNTIL THE NOSE WHEEL BEGAN SKIDDING. THE ACFT WAS STRAIGHTENED OUT BEFORE IT SLID THRU A SNOWBANK INTO A SNOW FILLED DITCH ON THE OPPOSITE SIDE OF THE RUNWAY.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

UNSAFE/HAZARDOUS CONDITION..NOT IDENTIFIED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

DIRECTIONAL CONTROL..NOT POSSIBLE..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..SNOWBANK


Contributing Factors

AIRPORT FACILITIES,TAXIWAY CONDITION..SNOW COVERED


Contributing Factors

AIRPORT FACILITIES,TAXIWAY CONDITION..ICY


Contributing Factors

TERRAIN CONDITION..DITCH


Contributing Factors

WEATHER CONDITION..UNFAVORABLE WIND


Contributing Factors

WEATHER CONDITION..HIGH WIND


Contributing Factors

WEATHER CONDITION..GUSTS


Contributing Factors

GROUND LOOP/SWERVE..UNCONTROLLED..PILOT IN COMMAND

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