Nixon Fork Mine - Palmer

During the takeoff roll, while passing 45 knots indicated airspeed, ice formed between the inner and outer panes of the airplane's windshield, obscuring the crew's vision. The flight crew aborted the takeoff, the airplane drifted off the left side of the snow covered runway, and caught fire. The crew reported the airplane and windshield were cold soaked and the temperature was -10 degrees Fahrenheit. The windshield anti-ice system blows air from a combustion heater between the windshield glass panes. The air source for the heater, once the airplane has forward airspeed, is two leading edge wing scoops. The crew told the NTSB investigator that the taxi time was too short for the windshield to warm up, and that during the taxi, snow was circulated around the airplane and into the wing scoops.

Flight / Schedule

Nixon Fork Mine - Palmer

Aircraft

Douglas DC-6

Registration

N861TA

MSN

43522

Year of Manufacture

1952

Date

January 2, 1998 at 03:26 PM

Type

CRASH

Flight Type

Cargo

Flight Phase

Takeoff (climb)

Crash Site

Airport (less than 10 km from airport)

Crash Location

Nixon Fork Mine Alaska

Region

North America • United States of America

Coordinates

63.2315°, -154.7656°

Crash Cause

Human factor

Narrative Report

On January 2, 1998 at 03:26 PM, Nixon Fork Mine - Palmer experienced a crash involving Douglas DC-6, operated by Woods Air Service - Woods Air Fuel, with the event recorded near Nixon Fork Mine Alaska.

The flight was categorized as cargo and the reported phase was takeoff (climb) at a airport (less than 10 km from airport) crash site.

3 people were known to be on board, 0 fatalities were recorded, 3 survivors were identified or estimated. This corresponds to an estimated fatality rate of 0.0%.

Crew on board: 3, crew fatalities: 0, passengers on board: 0, passenger fatalities: 0, other fatalities: 0.

The listed crash cause is human factor. During the takeoff roll, while passing 45 knots indicated airspeed, ice formed between the inner and outer panes of the airplane's windshield, obscuring the crew's vision. The flight crew aborted the takeoff, the airplane drifted off the left side of the snow covered runway, and caught fire. The crew reported the airplane and windshield were cold soaked and the temperature was -10 degrees Fahrenheit. The windshield anti-ice system blows air from a combustion heater between the windshield glass panes. The air source for the heater, once the airplane has forward airspeed, is two leading edge wing scoops. The crew told the NTSB investigator that the taxi time was too short for the windshield to warm up, and that during the taxi, snow was circulated around the airplane and into the wing scoops.

Aircraft reference details include registration N861TA, MSN 43522, year of manufacture 1952.

Geospatial coordinates for this crash are approximately 63.2315°, -154.7656°.

Fatalities

Total

0

Crew

0

Passengers

0

Other

0

Crash Summary

During the takeoff roll, while passing 45 knots indicated airspeed, ice formed between the inner and outer panes of the airplane's windshield, obscuring the crew's vision. The flight crew aborted the takeoff, the airplane drifted off the left side of the snow covered runway, and caught fire. The crew reported the airplane and windshield were cold soaked and the temperature was -10 degrees Fahrenheit. The windshield anti-ice system blows air from a combustion heater between the windshield glass panes. The air source for the heater, once the airplane has forward airspeed, is two leading edge wing scoops. The crew told the NTSB investigator that the taxi time was too short for the windshield to warm up, and that during the taxi, snow was circulated around the airplane and into the wing scoops.

Cause: Human factor

Occupants & Outcome

Crew On Board

3

Passengers On Board

0

Estimated Survivors

3

Fatality Rate

0.0%

Known people on board: 3

Operational Details

Schedule / Flight

Nixon Fork Mine - Palmer

Flight Type

Cargo

Flight Phase

Takeoff (climb)

Crash Site

Airport (less than 10 km from airport)

Region / Country

North America • United States of America

Aircraft Details

Aircraft

Douglas DC-6

Registration

N861TA

MSN

43522

Year of Manufacture

1952