5 fatalities

Three-Engine Ferry Flight Crash at Stockholm-Arlanda (EC-BNM)

Stockholm-Arlanda, SwedenTakeoff (climb)

On January 5, 1970, a Convair 990 Coronado (registration EC-BNM) operated by Spantax was involved in an aviation accident near Stockholm-Arlanda, Sweden during takeoff. 5 people were killed. Investigators recorded the probable cause as: During a 3-engine take-off the aircraft entered an uncontrollable attitude with increased drag and decreased indicated airspeed due to the following combined circumstances: unexpected, early loss of external visual references after lift off. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 7 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards
Aircraft registered EC-BNM
Aircraft registered EC-BNM. Photo: Lars Söderström / CC BY-SA 3.0, via Wikimedia Commons

A four-engine aircraft crashed during a three-engine ferry take-off from Stockholm-Arlanda after an aborted take-off due to engine damage. Five occupants were killed and five injured.

Background and Initial Incident The aircraft was originally scheduled for a non-scheduled international flight from Stockholm-Arlanda to Palma de Mallorca. During the initial take-off run, the No. 4 engine failed to function properly, prompting an aborted take-off. The aircraft was taxiied back to the apron, where inspection revealed damage to the compressor. After consulting with the Spantax Operations Department in Madrid, the decision was made to ferry the aircraft on three engines to Zurich for engine replacement. The technical preparation for this ferry flight was supervised by a Spantax ground engineer, while the flight crew planned the route. Because the ATS briefing office at Arlanda was closed after 2100 hours, the co-pilot phoned the flight plan to Stockholm Control Centre (ACC). Neither during this call nor at the weather briefing did the crew indicate that the flight was a three-engine ferry operation, although the Tower air traffic controller had been informed of the flight's nature through other means.

Probable cause

During a 3-engine take-off the aircraft entered an uncontrollable attitude with increased drag and decreased indicated airspeed due to the following combined circumstances: unexpected, early loss of external visual references after lift off. During transition from visual to instrument flying the pilot lost directional control, this again resulting in increased drag due to yaw. The presence of a temperature inversion reducing thrust and indicated airspeed. The presence of wind shear causing further decrease of indicated airspeed, which resulted in large drag increase.