Event Details

Title:Near-miss with tractor, Incident involving aircraft LN-RPL and a tow tractor at Stockholm/Arlanda airport, AB County, Sweden, on the 27th of October 2002
Micro summary:A Boeing 737-800 almost hits a tractor.
Event Time:2002-10-27 at 1520 UTC
File Name:2002-10-27-SE.pdf
Publishing Agency:Swedish Accident Investigation Board (AIB)
Publishing Country:Sweden
Report number:RL 2003:47e
Site of event:Stockholm/Arlanda Airport, Sweden
Latitude/Longitude:5939N 01756E
Departure:Lulea (Kallax), Sweden
Destination:Stockholm-Arlanda Airport, Marsta, Sweden
Airplane Type(s):Boeing 737-800
Flight Phase:Taxi
Type of flight:Revenue
Serious Injuries:0
Other Injuries:0
Executive Summary:An aircraft of type Boeing 737-800, belonging to SAS, with flight number SK009 landed at Stockholm/Arlanda airport on runway 26. In connection with taxiing in, the pilots misinterpreted the taxi chart in the SAS Route Manual they were using, which caused the aircraft to be taxied onto the wrong side of a ”roundabout” situated between taxiways X and Z. Owing to this, the aircraft ended-up on a collision course with a tractor, towing an aircraft of type MD-87 that was transiting the same ”roundabout”. The tractor driver thought that the Boeing 737 was close to colliding with the tractor. In order to avoid a collision he backed-up the tractor and the attached MD-87 approximately 50–75 meters.

The air traffic controller observed that the aircraft had entered taxiway ZP instead of ZN and pointed this out to the pilots. During the in-taxi the pilots saw the tow tractor with its attached aircraft obliquely left and forward of their aircraft but did not feel that any risk of collision existed.

The investigation has shown that the ”roundabout” that the pilots saw between ZN and ZP was not depicted on the taxi chart they utilized. It was also not depicted in the relevant AIP1. Furthermore it has been ascertained that the design and placement of certain information signs within the taxi system can be misinterpreted.

The incident was caused by the fact that the relevant taxi chart in the Swedish AIP was subject to misinterpretation. Contributory has probably been the unfortunate design of an information sign.
Learning Keywords:Operations - Airport Markings or Lighting
Operations - Airspace - Air Proximity
Operations - Charting/Databases


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