Linjeflyg Flight 618
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A view of the wreckage, in which the inverted tailplane is clearly visible as the only recognisable part
|Date||15 January 1977|
|Summary||Atmospheric icing; pilot error|
|Site||Kälvesta (Stockholm), Sweden|
|Aircraft type||Vickers 838 Viscount|
|Operator||Skyline Sweden for Linjeflyg|
|Flight origin||Malmö Airport|
|1st stopover||Kristianstad Airport|
|2nd stopover||Växjö-Smaland Airport|
|3rd stopover||Jönköping Airport|
Linjeflyg Flight 618 was a scheduled Linjeflyg passenger flight, operated by Skyline Sweden, that crashed into a residential area on 15 January 1977, killing all 22 people on board. The plane had left Malmö earlier that morning.
The airplane, a Vickers 838 Viscount, was at an altitude of 1,150 feet and was descending to land at the Stockholm-Bromma Airport (BMA/ESSB), serving Stockholm. Suddenly, the aircraft experienced a loss of pitch control. The aircraft went into a steep dive and crashed into the residential area of Kälvesta, five km short of the runway. The aircraft impacted a car park, and no one on the ground was killed. All 19 passengers and 3 crew members on board the airplane were killed. One of them was the well-known table tennis player Hans Alsér.
A full investigation into the cause of the accident was conducted by the Government of Sweden. The investigation came to the following conclusions:
The aircraft had been cruising for a long period with the number two and number three engines at a low power setting. This meant that the anti-icing systems run from the engines were not at a temperature sufficient for them to operate correctly. As a result, ice built up on the tailplane, which disrupted the airflow, causing the loss of pitch control when the flaps were being fully extended on final approach.