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1970 Stockholm Spantax Convair CV-990 crash

5 Jan 1970 · 1, 800 meters southwest of Arlanda Airport Runway 01/19.

Convair CV-990-30A-5 Coronado · Microburst-induced wind shear along with inclement weather

From Stockholm-Arlanda Airport (ARN) to Palma de Mallorca Airport (PMI)

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Event

Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
Event fatalities
5 · all aircraft and ground
Ground fatalities
Unknown
Occupants
Unknown
Survivors
5
InjuriesFatal: death within 30 days. Serious: over 48 hours in hospital within a week, most broken bones, severe bleeding, nerve or organ damage, or serious burns. Minor: anything less. Glossary
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
Airline

Convair CV-990-30A-5 Coronado

Aircraft type
Convair CV-990
Category
Airplane · from aircraft type
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
EC-BNM
Operator
Spantax
Onboard fatalities
5
Route
From Stockholm-Arlanda Airport (ARN)To Palma de Mallorca Airport (PMI)

Cause areas

  • Personnel issues › Task performance
  • Environmental issues › Conditions/weather/phenomena

From the investigation findings the Wikipedia article reports, sorted into the NTSB's cause areas with AI assistance.

Approximate · Coordinates from the Wikipedia article; not checked against an investigation report.

From the Wikipedia article

On 5 January 1970, a Convair 990 Coronado operated by the Spanish airline Spantax crashed shortly after take-off from Stockholm Arlanda Airport, killing five of the ten people on board.

Background

The aircraft was earlier that evening about to fly to Mallorca with Swedish travelers, but at take-off the number 4 engine developed a fault. The take-off was aborted and the aircraft returned to the gate and the passengers were allowed to leave the aircraft. Later in the evening it was decided to perform a three-engine ferry flight to Zürich for an engine-change. On board were three crew members and seven passengers. There was a strong wind and −27 °C at the airport.

Accident

At 22:24 hours the aircraft started its take-off roll on runway 19. During the take-off roll, the nose yawed to the right. This was corrected by retarding number 1 engine power from 85% to 80-60%. The aircraft rotated at 134 knots with 27 degrees flaps. While climbing, the aircraft banked 4-6 degrees to the right and the airspeed suddenly dropped to 10 knots below V2 (145 knots). The aircraft contacted some treetops, banked 10-15 degrees and crashed 1,800 meters from the point of lift-off. The plane ploughed a long road in the woods and broke into several pieces. The cockpit was separated from the rest of the fuselage and was wedged between tree trunks and hard frozen ground and tilted 45 degrees to the left.

First officer Miguel Granado was sitting to the right and became trapped when the seat pushed forward and both legs were caught up under the instrument panel. His right lower leg was broken and angled. His left foot was tightly pinched as well as his left calf and achilles tendon. Askew under the pilot was one of the aircraft maintenance engineers, trapped with multiple rib fractures. Granado held, without gloves, his hands on one of the fuselage pipes and tried to keep himself up and thereby relieve pressure on his friend's chest. Both hands received severe frostbite.

The captain escaped with minor contusions and was able to break free and get out. Aware of the risk of being motionless at these low temperatures, he walked around and tried to keep the body heat up and thereby escaped with minor frostbite on the hands and feet. They searched in the prevailing darkness and powder snow for the Emergency Locator Transmitter and could, after it was found, call for help. What the crew did not know was that there was a house where a family, asleep and oblivious to the accident, only a hundred meters from the crash site. The family later woke up when a police helicopter flew low over their house.

Investigation and cause

Investigation

The Swedish Accident Investigation Authority summarized the interacting factors of the accident:

Unexpected early loss of external visual reference after take-off.

Loss of directional control during transition from visual to instrument flying. The yaw created increased drag and yaw induced roll.

The presence of a temperature inversion, which resulted in a down draught and speed loss.

Presence of wind shear, which caused additional speed loss.

The group within the Swedish Accident Investigation Authority that investigated the emergency response pointed out certain deficiencies in the search and rescue systems, which later resulted in a reorganization.

Text from the Wikipedia article “1970 Stockholm Spantax Convair CV-990 crash” (revision 1339306077, retrieved 2026-09-18) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out. Read the article

Sources

Wikipedia article: 1970 Stockholm Spantax Convair CV-990 crash
Article
1970 Stockholm Spantax Convair CV-990 crash
Revision
1339306077 · 2026-02-19 · retrieved 2026-09-18
Wikidata
Q10674369
Licence
Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
Where each value comes from
Record
Wikipedia article "1970 Stockholm Spantax Convair CV-990 crash" (page 47775814, revision 1339306077)
Date
Wikipedia infobox: date
Place and country
Wikipedia infobox: site; country from Wikidata (P17)
Map position
Wikipedia article coordinates
Aircraft, operator and route
Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports)
Operation
operator is an airline according to Wikidata
Fatalities
Wikipedia infobox: aircraft fatalities
Ground fatalities
not stated in the Wikipedia infobox
Summary
Wikipedia infobox: summary
Source notes (1)
  • Wikipedia · Facts from the Wikipedia article's infobox and coordinates, not checked against an investigation report. Independent review pending.