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Last updated: 3 December 2021
Date:Friday 16 December 2016
Type:Silhouette image of generic CRJ9 model; specific model in this crash may look slightly different
Bombardier CL-600-2D24 Regional Jet CRJ-900ER
Operated by:Cimber
On behalf of:Scandinavian Airlines System - SAS
Registration: OY-KFF
MSN: 15231
First flight: 2009
Engines: 2 General Electric CF34-8C5
Crew:Fatalities: 0 / Occupants: 4
Passengers:Fatalities: 0 / Occupants: 5
Total:Fatalities: 0 / Occupants: 9
Aircraft damage: Substantial
Aircraft fate: Repaired
Location:København-Kastrup Airport (CPH) (   Denmark)
Phase: Standing (STD)
Nature:International Scheduled Passenger
Departure airport:København-Kastrup Airport (CPH/EKCH), Denmark
Destination airport:Palanga Airport (PLQ/EYPA), Lithuania
SAS flight SK2746, a Bombardier CRJ-900, was parked at aircraft stand A17 at Copenhagen's Kastrup Airport in Denmark. Passengers were boarding the aircraft and ground handling personnel loaded baggage and cargo. At the same time a tractor driver had to move an x-ray trailer from the eastern to the western part of the airport.
When the tractor driver arrived at the garage, he inspected the trailer hitch, the hitch pin and the availability of the locking ring. The inspection did not give rise to remarks.
A similar equipped tractor stood next to the tractor intended for use. The tractor driver observed that the gears of the tractor were not working properly, when the tractor moved forward, and he decided to replace the defective tractor with the tractor standing next to the tractor intended for use.
Due to lack of space, the tractor driver did not inspect the trailer hitch, the hitch pin and the availability of the locking ring of the other tractor. The tractor driver attached the x-ray trailer to the tractor. The tractor driver did not install the safety wire for the x-ray trailer braking system.
When driving on the airport southern service road with a speed of approximately 40 kilometres per hour and passing abeam aircraft stand A14, the tractor driver noticed a bump on the road. The tractor driver checked his rear-view mirror but did not observe anything unusual and continued driving. Suddenly, the tractor driver heard a loud bang and observed that the x-ray trailer had detached from the tractor and had collided with the aircraft at aircraft stand A17.
The trailer impacted the right hand rear fuselage below the no.2 engine, causing a large hole.

Probable Cause:

CONCLUSIONS: "Non-compliance with the Danish road traffic act led to an x-ray trailer detachment from a tractor on the aerodrome southern service road at EKCH. The x-ray trailer detachment caused substantial damages to OY-KFF parked at aircraft stand A17."

Accident investigation:
Investigating agency: HCLJ Denmark
Status: Investigation completed
Duration: 41 days (1 months)
Accident number: HCLJ510-2016-321
Download report: Final report

Damaged on the ground

METAR Weather report:
10:50 UTC / 11:50 local time:
ekch 161050z 17009kt 9999 ovc015 03/m01 q1033 nosig=

11:20 UTC / 12:20 local time:
ekch 161120z 19008kt 150v210 9999 ovc015 03/m00 q1033 nosig=


photo of Bombardier-CRJ-900ER-OY-KFF
accident date: 16-12-2016
type: Bombardier CRJ-900ER
registration: OY-KFF
photo of Bombardier-CRJ-900ER-OY-KFF
accident date: 16-12-2016
type: Bombardier CRJ-900ER
registration: OY-KFF

Video, social media

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 København-Kastrup Airport to Palanga Airport as the crow flies is 525 km (328 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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