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Last updated: 1 December 2021
Date:Monday 29 August 2005
Type:Silhouette image of generic DH8B model; specific model in this crash may look slightly different
de Havilland Canada DHC-8-202Q Dash 8
Operator:Horizon Air
Registration: N363PH
MSN: 520
First flight: 1998
Engines: 2 Pratt & Whitney Canada PW123D
Crew:Fatalities: 0 / Occupants: 3
Passengers:Fatalities: 0 / Occupants: 20
Total:Fatalities: 0 / Occupants: 23
Aircraft damage: Substantial
Aircraft fate: Repaired
Location:Portland International Airport, OR (PDX) (   United States of America)
Phase: Taxi (TXI)
Nature:Domestic Scheduled Passenger
Departure airport:Medford-Rogue Valley International, OR (MFR/KMFR), United States of America
Destination airport:Portland International Airport, OR (PDX/KPDX), United States of America
An Airbus A330-223, N855NW, was taxiing for takeoff at Portland International Airport, OR (PDX) when it collided with a DHC-8-202, N363PH, that was standing with engines operating waiting to be marshalled to its parking spot. There were no injuries to the 12 crewmembers and 235 passengers aboard the Airbus or to the 3 crewmembers and 20 passengers aboard the DHC-8. There was minor damage to the left winglet of the Airbus and substantial damage to the tail of the DHC-8. The Airbus was operated by Northwest Airlines as flight number 5, a scheduled international passenger flight from Portland to Narita Airport, Japan. The DHC-8 was operated by Horizon Air as flight number 2066, a scheduled domestic passenger flight from Medford, Oregon to Portland.

The Airbus was taxiing east via Taxiway B to runway 28L for departure. The DHC-8 had landed, taxied to the gate area, and was stopped on the ramp located north of Taxiway B waiting to be marshalled to its parking spot. The DHC-8 was sitting on a northerly heading, oriented perpendicular to Taxiway B with its tail towards the taxiway. As the Airbus passed behind the DHC-8, the left wingtip of the Airbus struck the tail of the DHC-8. The left winglet of the Airbus was scraped, bent and cracked. The vertical stabilizer, horizontal stabilizer, both elevators, and the rudder on the Bombardier sustained structural damage.

The entire tail section of N363PH were replaced by the tail of a DHC-8-100, N231ES, that was being scrapped.

Probable Cause:

PROBABLE CAUSE: "The failure of the flightcrew of the other airplane to maintain clearance while taxiing."

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 211 days (7 months)
Accident number: SEA05LA184B
Download report: Summary report

Ground collision
Damaged on the ground



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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 Medford-Rogue Valley International, OR to Portland International Airport, OR as the crow flies is 356 km (222 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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