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Last updated: 26 May 2019
Status:Final
Date:Wednesday 29 August 2001
Time:19:00 ADT
Type:Silhouette image of generic DHC4 model; specific model in this crash may look slightly different
de Havilland Canada C-7A Caribou (DHC-4)
Operator:Greatland Air Cargo
Registration: N2225C
C/n / msn: 215
First flight: 1964
Crew:Fatalities: 0 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Aircraft fate: Written off (damaged beyond repair)
Location:Port Alsworth Airport, AK (PTA) (   United States of America)
Phase: Landing (LDG)
Nature:Ferry/positioning
Departure airport:Iliamna Airport, AK (ILI/PAIL), United States of America
Destination airport:Port Alsworth Airport, AK (PTA), United States of America
Narrative:
The Caribou was on a positioning flight to Port Alsworth to pick up cargo. The airplane was configured for landing with 40 degrees of flaps. During the landing approach, variations in indicated airspeed and ground speed indicated windshear conditions. About 100 to 200 feet above the ground, the airplane encountered a downdraft and began to drift to the right of the runway centerline. The captain increased engine power and applied full left aileron and rudder, but could not gain directional or pitch control of the airplane. The right wing struck trees, short of the runway threshold, increasing the airplane's right yaw. As the airplane neared the ground, the captain pulled the engine throttles off. The airplane struck the ground with the right main landing gear and right front portion of the fuselage. The airplane then pivoted to the right, 180 degrees from the approach heading.

Probable Cause:

PROBABLE CAUSE: "The captain's failure to maintain the proper glidepath, and improper short field landing procedures. Factors in the accident were a downdraft, and the captain's inadequate evaluation of the weather conditions."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 279 days (9 months)
Accident number: ANC01LA129
Download report: Summary report

Sources:
» NTSB


Photos

photo of C-7A-Caribou-HR-ALY
accident date: 29-08-2001
type: de Havilland Canada C-7A Caribou (DHC-4)
registration: HR-ALY
 

Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Iliamna Airport, AK to Port Alsworth Airport, AK as the crow flies is 60 km (37 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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