Investigation Summary
The accident occurred in thick fog with visibility less than 200 meters. The Cessna Citation CJ2 (D-IEVX), piloted by two German aviators, was instructed to taxi via taxiway 'R5' but instead turned into taxiway 'R6', which led directly to the active runway. Because the airport's ground radar system was non-functional and the taxiway markings were non-standard and faded, the controller was unaware of the Cessna's actual position. The MD-87, crewed by Captain Joakim Gustafsson and First Officer Anders Hyllander, was at high speed on its takeoff roll when it struck the Cessna at approximately 146 knots. The impact sheared off the MD-87's right main gear and damaged the right engine. The pilot attempted to maintain control and deployed thrust reversers, but the aircraft became momentarily airborne before impacting a baggage handling hangar at a speed of approximately 139 knots (257 km/h). The subsequent fire and the structural collapse of the building contributed to the high death toll.
Final Conclusions
The primary cause was the Cessna's entry onto the active runway, facilitated by deficient airport infrastructure including non-compliant signs and markings. Contributing factors included the lack of a functioning ground movement radar, the failure of the controller to recognize the Cessna's position from its radio transmissions, and the high-pressure environment created by heavy fog. The investigation also highlighted that the airport was operating under low-visibility procedures that were not fully compliant with international safety standards, particularly regarding the management of ground traffic without radar support.
Video Analysis
The Linate Airport Disaster | Disaster Breakdown — An analysis of the 2001 runway collision between an SAS MD-87 and a Cessna Citation in Milan, Italy.
If playback is blocked, the owner has disabled embedding — use the link above.
Airframe & Maintenance
Scandinavian Airlines (SAS) SK686 — McDonnell Douglas DC-9-87 (MD-87) · SE-DMA
Crew Experience
Captain
Joakim Gustafsson, aged 36
First Officer
Anders Hyllander, aged 36
Captain
Horst Konigsmann, aged 36
First Officer
Martin Schneider, aged 64
Systems & Failure Modes
Ground Movement Radar
A surveillance system intended to track aircraft on the ground; it was offline at the time of the accident.
ASMGCS
Advanced Surface Movement Guidance and Control System, which was missing or inadequate at Linate in 2001.
Runway Stop Bars
Red lights used to prevent aircraft from entering a runway without authorization; these were not present on taxiway R6.
Interesting Facts
- 01The ground radar system had been delivered months prior but was not yet operational.
- 02Taxiway R6, which the Cessna used, was not equipped with stop bars or clear signage to prevent runway incursions.
- 03The total of 118 fatalities includes all 110 people on the MD-87, 4 on the Cessna, and 4 workers in the baggage handling building.
- 04The airport was operating under Category III weather conditions (low visibility).
- 05The MD-87 pilot successfully deployed thrust reversers and brakes in a futile attempt to stop after the collision.
- 06The Cessna pilots were unfamiliar with the airport and misled by non-standard taxiway markings that were faded and poorly maintained.
Safety Actions & Advisories
Infrastructure Upgrades
Linate Airport installed fully operational ground radar and standardized all taxiway markings and signs to ICAO specifications.
Operational Procedures
Revised ATC procedures to require more explicit position reporting from pilots during low-visibility operations.
Known Controversies & Unanswered Questions
Criminal Convictions and Negligence
Reference ↗Following the accident, Italian courts handed down prison sentences to several officials. In 2004, the director of Linate Airport and the head of the air traffic controllers were sentenced to eight years in prison for manslaughter and negligence. Two other controllers received shorter sentences. The trials highlighted systemic failures in airport management, including the long-term deactivation of ground radar and the use of non-compliant taxiway markings.
Location
APPROXIMATE AREA ONLY · This position predates coordinate provenance tracking. Treat it as an approximate marker for the area, not the accident site. No map is shown, because a marker here would imply a precision the record does not have.
Reported location: Linate Airport, Milan, Italy